Onion Weed (forum)

John starts with ...
Hi Im about to start planting and found that i have a huge onion weed problem, its right through my lawn...everywhere. I've tried roundup but keeps coming back. Can anyone offer advice on how to get rid of this pest prior to planting.

Time: 18th September 2008 7:52pm

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Jantina says...
Hi John, failing any brilliant solutions from anyone else here are my suggestions.1, learn to live with it. 2,spray with roundup again (I loath the stuff myself) and when it comes up again mulch it heavily and whenever a bit comes through mulch it again until it gives up.Onion weed is a little bulb and if the leaves cannot get to sunlight to photosynthesize it will eventually starve and die.3,simply repeat the above mulching steps without the roundup(that would be my choice). If you put cardboard down first and sheetmulch over that it makes it that much harder for the onion weed to come back up. lots of luck. p.s. you must be vigilant about any bits that come back up or it will take off again. Jantina

Time: 20th September 2008 2:50pm

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peter says...
pouring boiling water on weeds is
supposed to kill them.

Time: 20th September 2008 8:35pm

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Scott G says...
The onion weed bulbs are usually only a few cetimetres below the surface carefully slicing the topsoil away and disposing of it should take the bulbs with it. This is assuming that the soil hasnt been disturbed thus mixing the bulbs throughout the soil.

Otherwise I would expect a good infestation of onion weed to take a few years of routinely applying roundup to kill. Not all bulbs have leaves all the time. So while many get sprayed many stay dormant and sprout up later.

John: are you sure you have onion weed (Nothoscordum gracile) in your lawn and not Nut Grass?

Time: 21st September 2008 12:06pm

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John says...
thanks for this everyone, pretty sure its onion weed scott. there is a small bulb at the bottom and when i extract them carefully it reveals its 'babies' sometimes about 50 little ones all attached to the main bulb. i guess i didnt get the answer i wanted but at least i know... its going to take years!

Time: 21st September 2008 8:20pm

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trikus says...
Its called nut grass up here , and the old round-up , will only set it back a little . Special spray for it costs a fortune .. nearly $100 for `100ml .. its better to just shade it out and learn to live with it .

Time: 21st September 2008 10:39pm

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Scott G says...
A word of caution when digging up Onion Weed. Many of the bulbs are whitish and are easily seen. But dormant ones can be dark brown and very small. These ones hide well in dirt. So be careful what you do with soil that you THINK you have removed all the bulbs from.

Time: 23rd September 2008 12:13pm

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lolo says...
I had a huge problem too, but it is decreasing every year. I go around each week and pull it back to ground level. The bulbs need the green part to photosynthesise, as someone else mentioned, so if you starve it by just yanking at the green each week, you get rid of it after about 3 goes. Eventually (after 3 goes) the bulb is so skinny it comes out with the leaves. That way, you get rid of it without using poison. I got rid of blackberries using the same method.

Time: 23rd April 2009 6:20pm

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rose says...
you know its onion weed by the smell it smells like onions

Time: 24th June 2009 4:24pm

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Steve says...
I found out the hard that you never try to dig out the weed as it will only spread at twice the rate of your effort.
The best way I found was to use a small paintbrush to apply a little roundup/glysophate onto a couple of leaves.
Don't dilute the glysophate - use it at 100% straight from the container.
It works every time.
It's time consuming if you have a lot of weeds, but it works.

Time: 24th June 2009 8:02pm

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Russell says...
Don't confuse onion weed with nut grass they are not the same. Nutgrass is much worse as a weed, apparently the world's worst weed. It spreads through the soil like cooch grass but creates 100s of tiny round brown nuts, all of which will grow. It can take over and ruin an entire farm if let go. Some farmers will remove the enire soil from where a patch of nutgrass is found and burn it on top of a bonfire. Cultivation only spreads it making the problem worse and most sprays, including roundup, only set it back a while. Back to onion weed: (little white bulb with strong onion aroma)The best way to eradicate it from your garden or block is to go round each year in late winter/early spring, when it flowers, with a curved garden trough and bucket, and dig up the bulbs. Generally the soil is moist at this time of year and the bulbs will come out easily with a slight loosening. Don't shake the soil off but throw the whole clump into the bucket then either burn it on a bonfire or bin it. Some bulbs do remain dorment for a season but sooner or later they give themselves away by flowering, their flowers being like little white flags that wave to you the reality of their presence. It is very helpful of them to surrender in such a way. Do this for a few seasons and your block will be onion weed free.

Time: 30th August 2009 5:35pm

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Russell says...
Actually having just been out doing my anual onion weed eradication hunt, and being hit again with the strong onion smell, stronger than normal onions and on a pa with fresh crushed garlic, I wonder whether the common and often maligned onion weed might have a constructive use as a deterent insect spray as with garlic spray. Perhaps if they were washed then put through a juicer, or blender and sieve, the juice sprayed on insect prone plants may be a very good organic insecticide. Could it be that the gardener's enemy turns out to be his best friend?!!

Time: 30th August 2009 9:18pm

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VLR says...
I have onion grass in my lawn that I dig out very carefully (the bulbs tend to detach and remain in the soil if I pull the leaves too hard). It's hard work but there seems to be a lot less this year than last year (I only moved into my new place last year). Whatever method you try, definitely get to them before they go to seed. Are they poisonous to dogs? My dog likes to "help" with the gardening and flings them around though I take them off him before he eats it.

Time: 31st August 2009 12:12am

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Russell says...
Aparently they are edible so they shouldn't hurt the dog.

Time: 6th September 2009 9:43pm

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kylie says...
i have 5 acres which is totaly covered in onion weed, it's in the garden beds every where, i hate it, but can anyone tell me is there an animal out there that eats it. horses and cattle don't, i am now trying goats and sheep, but they don't seem to be doing much either, some one told me if you just keep mowing it, it will eventually die off, is this true.

Time: 14th September 2009 4:59pm

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Clare says...
I have spent today pulling up onion weeds and wonder if they can be put in the compost bin where there is no light? Also am I wasting my time as the neighbours seem to be leaving theirs to do their own thing?

Time: 14th September 2009 10:31pm

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Jantina says...
Hi kylie, it's a bulb so if you constantly remove the green above ground part it will weaken and die but mowing would probably leave enough green leaf for it to continue feeding the bulb, my feeling is that it might slowly weaken the bulb but could take years and you'd still probably have some. Clare, unless your compost is very well managed and reaches very high temperatures the bulb will survive. I'd put them in the fire or in the rubbish bin.

Time: 15th September 2009 12:00pm

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sunshine77 says...
onions and garlic are both poisonous to dog small amounts of either one can cause renal failure in some individuals

Time: 17th September 2009 12:16pm

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amanda says...
I hope it's OK to ask a chook question 2? ... is there anything that is No-No for feeding chooks? I have never had them b4. U are right about the onions n dogs sunshine77, BTW.
We had a tame parrot and avocado was strictly off the menu...

For the onion weed - I would glue/stick some sponge bits onto the thumb and forefinger of a pair of rubber gloves - put them on, dip them into NEAT glyphosate and "wipe" all the leaves with it. Much quicker than a paintbrush? Not much good for 5 acres tho' Kylie! :( Have u thought about biting the bullet and nuking the whole lot and then starting again with a heavy sowing of perennial grass seeds?

Time: 18th September 2009 10:27pm

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nissa1054 says...
One of my goats ate the onion weed right down. However because I don't have him anymore, they have come back good and strong.
Onion weed is not a member of the onion family, it gets its name because of the smell, so it is not harmful to dogs.
It seems some goats are better at controlling the weed that others - cashmere and boer crosses are two that come to mind.

Good luck with the onion weed problem. Looking at getting another goat, hopefully it will eat the weed down ...lol

Time: 3rd October 2009 3:58pm

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Colin says...
Re Onion Weed. Am I likely to spread the plant by mowing over the flowers and adding the cuttings (with grass) to my compost???

Time: 21st October 2009 1:50pm

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Jantina says...
Only if your mowing clippings includes flower heads that have set seed.

Time: 21st October 2009 3:38pm

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Colin says...
Thanks Jantina,

How do I tell if the Onion weed has set seed? most seem to just flower then wither and die. I haven't really seen the typical seed heads of most other weeds.

Time: 22nd October 2009 4:42pm

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Brad says...
Someone will correct me if this is wrong but I think that the little brown spherical seeds are in green cylindrical pods (on stalks).

I seem to recall shelling them in school on the oval...

Time: 22nd October 2009 7:34pm

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Jantina says...
Correct Brad.

Time: 23rd October 2009 4:54pm

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Colin says...
Brad, Jantina, thanks.
On checking the flowers I found tiny seeds hiding inside. I'll give the old Onion weed 10 out of 10 for resilience, tenacity and perseverance. Until they start sprouting small arms and legs and carrying tiny uzi's, my mission is to destroy them.
Bring it on Onion Weeds.


Time: 26th October 2009 9:50am

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Mary says...
It may be a deadly question but can onion weed edible? The reason I ask was seing a group of people picking a bunch of wild onion weed flowers, I only hope it was just for fun but did not want to approach them.

Time: 26th October 2009 10:15pm

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Steve says...
I tried digging out onion weed & only succeded in generating more plants. I found wiping some leaves with straight glysophate, using a small paint brush was 100% successful. I'd hate to have 5ac of this horrible weed.

Time: 29th October 2009 9:42am

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Louise says...
I was advised only this morning that the best way to get rid of anything that has a bulb or any weeds in general is to sterilise the soil by using a product called Zerdane. It will kill the seeds under the soil including the dormant ones and was told if I had nutgrass to give it two shots about a week apart, leave it for 4 weeks and then dig them up. I would think that it will kill all plant seeds so may not want to try it on lawn or do a test patch first??

Time: 9th December 2009 2:55pm

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Julie says...
I wonder if this would work for oxalis - 'sour grass'. But if it kills the seeds/bulbs, why do you have to dig them up?

I have about 1/2 acre of this obnoxious weed, so I wouldn't have a hope of digging them all. I will look into it.

Time: 9th December 2009 3:12pm

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Julie says...
Louise, are you sure you have the right name? I did a Google search for Zerdane and it seems to be DDT! Where did you hear about this?

I haven't come across anything that will kill off oxalis - maybe I should start another thread.



Time: 9th December 2009 4:07pm

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Russell says...
Oxalis is another weed that has the potential to take over a property if left unchecked. Like onion weed it multiplies in two ways by seed and by growing new baby bulbs around the mature bulb. Also as with onion weed cultivation only spreads it further. Though it is backbreaking work the best way is to carefully dig it up and burn the bulbs. Don't try to shake all the dirt off the bulbs as you will undoubtably shake off tiny bulbs as well. Through plants into a bucket then burn it on a bonfire. A good soaking of deisal helps this process well. These weeds, nutgrass, onion weed and oxalis need to be treated like a cancer that is spreading through your property. If left unchecked they can render the property useless in terms of cropping or gardening and greatly decrease its value. There are farms in the Dandenong Ranges that are completely overun by these weeds because the owners did not take the neccessary trouble of digging up these weeds when they first appeared in a small patch on their farm, generally accidently brought in on equippment or in soil around purchased plants. Now is the time to dig up oxalis as it is flowering (white flowers)and has the distinctive clover like leaf. Back to onion weed, you will have to wait to next spring to attack that, when it flowers again. Our half acre house block was littered with it when we bought it. We paid the kids per bucket to dig it up, which they got into. Now I systematically recheck it every year and have virtually wiped it out. Even five acres can be done with a systematic approach.

Time: 15th December 2009 10:54pm

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kate says...
I've been attacking near to two acres of onion weed without the use of herbicides and it's a slow process that you need to remain vigilant at, but it *is* doable!
Dig up the bulbs by hand as soon as they appear when the weather cools! I spend my Autumn and Winter systematically digging up the bulbs and the earlier in the season, the better! Later in the season, the older bulbs grow little bulbils which can easily become detached and remain undetected in the soil, when the main bulb has been removed, ready to grow the next season!
Keep on top of cleared areas! If the weed appears in a previously cleared area, dig deeper to remove it!!! It's quite likely that you detached the bulb whilst you were digging and in my experience, the older the bulb, the deeper in the soil it sits! An older bulb will be bigger and the blades will grow stronger and longer! Newly seeded bulbs grow fine tiny blades that won't flower for another season, but can easily be overlooked, because they may blend in with other grasses or 'good' plants!
Later in the season, pull off any flowers and bin them! I patrol my block as often as possible and try to pull them off before they bloom! A flower left to seed creates a 'grove' of about twenty tiny 'blades' that will be even more difficult to remove come next Autumn!
If neighbours aren't as vigilant at removing their weeds, create a mulch barrier- strip a few feet wide! The flowers tend to seed in fairly close proximity to the plant. (I just sweep all the autumn leaves into a ten foot strip down the boundary line!)
And lastly, mow/whipper snip the blades as the weather is warming! *Not essential, but it *does* reduce the 'fuel' returning into the bulb once the growth has died off in late Spring.
Hope this helps!

Time: 2nd July 2010 3:30pm

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Liz says...
A commercial olive grower told me that sour grass thrives in sour soil and treating the soil with lime or dolamite would make a difference. Has anyone tried this?

Time: 28th August 2010 6:40pm

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Julie says...
Liz, that might be true - the soil where I live is fairly acid in parts, and the oxalis has taken over.

But I have seen sourgrass growing just as well near the coast, on sandy,limy soil in WA.

Time: 28th August 2010 8:07pm

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dnaplscraple says...
Two options I can recommend.

1. You can use non dilute white vinegar, pored directly on each onion plant. The low ph will knock out the onion grass. You would need to take care and in time, get the problem solved.

2. Cover the with a geotextile (we use 4 layer of newspaper covered with a mulch) used for weed prevention. This will cut out sunlight and kill off all vegetation. The fabric will need to smother the area for at least 4-6 months.

Time: 28th August 2010 8:30pm

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stuart says...
"Oxalis debilis var. corymbosa and Onion Weed Nothoscordum gracile growing in lawns are so easy to eradicate. Find where the leaves emerge from the ground and dribble machine oil onto them so that it can coat and smother the bulbs to death."

Found this on ABC's Gardening Australia website fact sheet for organic weed control.I am going to give it a go on a trial patch of my lawn.

Time: 11th September 2010 5:51pm

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John Mc says...
Any problems with the machine oil contaminating the soil Stuart? Would Olive oil or other vegetable oil be just as effective?

Time: 11th September 2010 6:41pm

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stuart says...
I don't know, that's why I'll just trial it on a small patch at first, it's only a dribble, enough to coat seeds, and I don't want to spot Roundup as in the past when I have done that inevitably a small patch of lawn around the weed dies too.
I'll see how it goes for a few weeks, Ijust want to kill it before it flowers.

Time: 12th September 2010 7:38am

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tomm says...
I have just used a product called destiny to kill my onion weed in my soft leaf buffalo. It has been a week and it is now starting to turn yellow with the lawn looking good.

Time: 22nd October 2010 6:11am

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j says...
Normal Roundup gets onion weed turning yellow too. Tomm, let us know if that product gets rid of them completely.

Time: 22nd October 2010 11:39am

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kert says...
From a toxicity perspective I am not sure engine oil is to be preferred to Roundup. Used engine ie sump oil picks up some heavy metals as well.

Time: 22nd October 2010 3:26pm

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amanda says...
Unless u plan on eating the lawn then what's the problem? ;-)

(ps kert - u are slipping up sweet!? xx)

Time: 23rd October 2010 11:59pm

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peter says...
the bags of blood and bone i have used
in the past says that frequent use can
cause a build up of heavy metals in the soil.

Time: 24th October 2010 8:54am

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tomm says...
In my case I have an enormous problem of onion weed in my lawn. There is no way I am spending months trying to eradicate it. The beauty of the destiny is I mix it and spray it with no damage to lawn unlike roundup.So far it has got rid of a couple of other types of weeds but has left a couple of other types. The onion weed is slowly dying off. I am sure I will need a few applications over time to completely get rid of it.With Christmas around the corner and my father In-law arriving who judges my character on how well my lawn looks I am starting to grin already :)

Time: 25th October 2010 7:54am

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amanda says...
Phew - finally got here! I just read in the weekend paper (Sabrina Han?) about Urea killing off onion grass and bulbs? Urea would make that lawn very nice for F.In-Law tomm! (just don't over do it though - you may burn out your lawn too)

Apparently the urea burns out the bulb.

Time: 25th October 2010 9:14pm

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tomm says...
job done onion weed dead :)

Time: 1st November 2010 2:05pm

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markd says...
tom that destiny stuff is pretty dangerous - also goes by the name of Hussar with the active ingedient iodosulfuron-methyl-sodium. I have been looking for a solution for a client and having read up just now I won't be using destiny.

Time: 7th November 2010 2:52am

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Rob says...
I have a newish Sir Walter lawn. It came up with tons of onion weed after it was laid down. I tried a couple of different herbicides without any success- after finding most kill buffalo lawns(like Sir Walter). Nurserys also told me I just had to live with the weed.
Eventually I found Amgrow Chemspray Bin-Die which is Buffalo safe, mixed it with a little detergent (I read it helps to penetrate the waxy leaves) and put it into a spray bottle - used on jet to target just the weeds. In days the onion weed turned yellow/brown and started to shrivel - zero lawn damage. I mowed the lawn after a week or so and then sprayed any new onion weed leaves that sprung up, another week or two, mowed again - have not seen any more onion weed since. Seriously took no more than a couple of hours in total. Of course I am waiting to see if any new shoots come up, but so far so good

Time: 11th November 2010 2:01pm

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snottiegobble says...
I dont have onion weed but I do have a very invasive mainly red leaved oxalis with yellow flowers.It has small leaves & tends to thrive in potting mix so I believe it came with plants from nurseries. Now its a bloody nuisance in my above ground vegie garden as it tries to suffocate long season plants like onions, garlic etc. Of course when you remove it their roots become exposed. Anyone know its specific name?

Time: 12th November 2010 2:45am

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amanda says...
Snottiegobble - it's not "creeping oxalis" is it? Julie put me onto it as I had the same problem from nursery plants. I googled the image and it was a match.
Try this in the google field

creeping oxalis image

Time: 12th November 2010 12:43pm

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About the Author amanda19
Geraldton Mid West WA
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snottiegobble says...
Thanks Amanda , thats one of them & the LEAST invasive! The other`s leaves & flowers are similar, but it is a lot darker with washed maroon over the green leaves. The seed pods are pea green, 8cms long, 5 sided & pointed. It forms dense mats & loves bricked paths like I have down the centre of the vegie patch. Dont want to use roundup but, see no options.
On the same vein the ocas ( oxalis tuberosa) are going really well Charles. They are over a foot high & I am hilling them up as they grow. They are already shaded by shade cloth.
Thank God they dont behave like their relatives eh? How is yours Amanda? Jantina`s oca is just showing thru.



Time: 12th November 2010 1:46pm

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About the Author snottiegobble
Bunbury/Busso (smack in the middle)
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amanda says...
Hey Snottie and Jantina - I raced out to check my oca after I saw your post Snottie and it has a shoot! I am thrilled to bits :) Now to keep it going to share with others also. Thanks jantina.

Snottie - can u take a pic of the weed? If you post it in the "What is it?" thread someone will be bound to know.

Time: 12th November 2010 6:20pm

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About the Author amanda19
Geraldton Mid West WA
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snottiegobble says...
Will do Amanda. Just need a little time. I have been potting up ferns for my cafe friend`s courtyard to go round her water feature. Gee, these solar fountain pumps are really good for the money.
Watch out for snails & dont forget to shade your oca first sign of really hot weather.
Anyone know what the oxalis type plant is that blooms prolifically in clumps in the autumn with bright yellow attractive flowers on long stems?

Time: 12th November 2010 8:19pm

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About the Author snottiegobble
Bunbury/Busso (smack in the middle)
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Julie says...
Soursob is the common name - Oxalis pes-caprae. I have about 3/4 acre of the stuff and no hope of getting rid of it. It has completely taken over and taken the place of the good weeds that used to be there.

By 'good' weeds, I mean ones that can be whippersnipped and used as mulch. This stuff dies down to nothing.

Any ideas someone?

Time: 12th November 2010 9:26pm

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About the Author Julie
Roleystone WA
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amanda says...
Julie, do you think the Urea trick that Sabrina Hahn mentioned for onion weed might work on oxalis? It apparently burns out the bulb in onion weed.

Time: 13th November 2010 11:52am

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About the Author amanda19
Geraldton Mid West WA
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Julie says...
I'll try that on a small patch next year amanda. Can't do any harm!

Time: 13th November 2010 8:04pm

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About the Author Julie
Roleystone WA
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amanda says...
Yea Julie - I reckon it's worth a shot? I was thinking the granular form put directly on top on the plant and then just a tiny bit of water to take it down without diluting it out too much?


Time: 13th November 2010 11:14pm

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Geraldton Mid West WA
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tomm says...
thanks Markd,
hussar and destiny are two different products, destiny just uses the idosulfuron-methyl-sodium where the hassar uses it along with several other chemicals.I have read both MSDS's and as long as you dont eat it, bath in it or fill your fish pond with it and follow the directions I am pretty sure you will be ok. If you read the MSDS on oven cleaner you would not use it either.
however the lawn is looking great and that is the most important thing :)

Time: 15th November 2010 5:56am

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russell says...
Urea is the main nitrogen-containing substance in urine. All this time and money wasted on hard work and expensive chemicals when maybe we just had to go out and pee on the onion weed!!! LOL P*#d Off!!

Time: 27th November 2010 10:47pm

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natalieschwab says...
Hi everyone, my name is Natalie and I am writing a story about onionweed for the Tombston Epitaph, as it is becoming a big problem in Arizona. Would any of you be willing to do a quick interview with me for the story? We can do it over phone or email, whichever you prefer. I just wanted to talk to some people who have dealt with the issue in their lawns/gardens and have tried to get rid of the weed. Please let me know ASAP as this story runs Friday. Thanks!

Time: 25th January 2011 6:33am

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About the Author natalieschwab
Arizona
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John Mc says...
Hi natalieschwab,
You will find just about everything you need to know if you go back through these posts. I don't think any one person could give as much information as posted here.

Time: 25th January 2011 8:17am

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Jennifer says...
Hi Onion weeds keeps growing with my srouting onions and I use the green from them daily I am a little worried about eating onion weed,I have read it edible although I am not sure that the information is correct..is it true or could onion weed be used for healing as I will just eat it too..I think i am chopping it up with the other onion.

Time: 10th May 2011 2:51pm

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About the Author Jennifer5
Sydney Australia
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Bev asks.... says...
My new garden is heavy clay and is infested with onion weed. Tried carefully digging it out and using Round Up, but altho I have gotten rid of the big ones, babies have arrived. Should I grow loads of groundcovers to crowd them out and smother them as well as place loads of mulch on top of them?

Time: 26th May 2011 7:21pm

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About the Author Bev asks1
Bedford, Eastern Cape
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Charles cant spell says...
Treat them as a source of onion, its free grows well and saves you growing more difficult and longer to yield onions. As like everything once you decide its perfectly edible and start using it a few times weekly, it would be long before your running out of that weed. Mulching them while it might smother it, wont kills the bulbs, and they seem to last a few years. Don't eat the ones you have round ups though.
You could out compete them with Garlic Chives, the intermingled leaves can be harvested at the same time and it would be irrelevant, due to the nature of the matted garlic chives roots I recon it would out compete eventually.

In Pemby we have 5x5 meter patches of the stuff, so short of smothering and solarising its a case of remove the majority and keep coming back to it.

Time: 27th May 2011 1:14am

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About the Author Charlesstillcantspell1
Perth Innaloo
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Simon says...
Rob - just about to launch into my own Onion weed problem. where did you buy the Amgrow Chemspray Bin-Die?

Time: 19th September 2011 12:13pm

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Simon says...
Tomm, where did you get this Destiny product?

Time: 19th September 2011 12:15pm

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Jimmy says...
Try global products

Time: 20th September 2011 4:02pm

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tomm says...
i got the destiny from globe, they are a turf management company in all states. i had great success with this product. it is expensive, about $200 but this is enough to supply half of sydney. another guy was saying it is dangerous but no animals or people were hurt from my use.

Time: 22nd September 2011 3:21pm

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About the Author tomm
sydney
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ringelstrumpf says...
do you know the latin name for this plant? Then you could look up in "PFAF" maybe it's edible? Provided correct identification.

Time: 22nd September 2011 5:49pm

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About the Author ringelstrumpf
Mountains
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newthumb says...
I have a huge onion weed problem in the lawn at our new rental. As I dont want to spend a lot of money on it I was wondering how u used the urea?
Have only been here a few months but havent seen any flowers yet

Time: 29th September 2011 5:26pm

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About the Author newthumb
Perth WA
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frankie says...
Avoid the temptation of pulling it out, if you do pull it out it will quickly multiply. Each strand of onion weed has numerous dormant bulbs beneath the surface, pulling the strand out activates these bulbs. All you can do is patiently paint the strands with roundup or zero. Sorry for the bad news, I found out the hard way.

Cheers
Frankie

Time: 29th September 2011 9:25pm

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Wazzbat says...
I sprayed mine today with Glyphosate (roundup, zero etc etc). I will keep doing that now until it is all gone!!! I'm preparing for a long drawn out battle. It's nasty stuff!



Time: 29th September 2011 10:09pm

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About the Author Wazzbat
Vic Park WA
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Kasta says...
I also have onion weed EVERYWHERE. One garden bed ended up covered after I spent ages digging them out one-by-one before planting carrot and sweet pea seeds. I got no carrots or sweet peas but increased my onion weed population 10-fold. This was despite me thinking I got every one, including the babies. So, I am going to dig the whole bed out, lay down lots of sheets of newspaper/cardboard and then put new soil and compost on top - at least 30cm worth. It is a 13m x 1m bed so will take a while. :) As for the onion weed in all my other garden beds I am going to try to shave off the tops until the bulb eventually "starves". I can't dig out the entire bed because they already have established plants in them.
I hate this weed with a passion!

Time: 1st October 2011 5:04pm

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Jon says...
I've been upending my turf with a spade and pulling the onion weed out by the bulb. Does this have the same danger as digging it out? It is most satisfying pulling out a large plant by the bulb!

Before I laid my Sir Walter this time last year I read that the soil should have bee "nuked" with weedkiller, covered with plastic and left for a few weeks before rolling out the turf.

This seemed like overkill . . . fortunately the onion weed is mostly around the border of the lawn so I can turn over the turf to remove the bulbs without causing too much obvious damage.

It is an evil weed though.

Time: 17th October 2011 9:43pm

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About the Author Jon9
Sydney
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TreeBee says...
Onion Weed!!!! I hope you have success in keeping on top of it John. Nothing is 'overkill' when it comes to Onion weed. I hope it doesnt overrun your lawn. You can always have another go or treat sections. Try a Pine oil based weedkiller and smother the area in black plastic in the heat of summer and let it fry for as long as you can, then sow an Autumn lawn. Best of Luck.

Time: 17th October 2011 10:23pm

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About the Author Swishtree
Gippsland, VIC
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Albert says...
I have just spent a day spraying half my onion weed patches over 2 acres. Round up is suppost to kill onion weed if sprayed just before or during flowering. I used a 1.5L soft drink bottle with the bottem cut out as a shroud over the end of a spray nozzle. This goes over neatly the flowers with a fine mist.
I might find dead perfect round patches over the paddock and lawn in a few months but in will be worth it:)

Time: 20th October 2011 4:05am

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About the Author Albert2
Moura QLD
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Stephen says...
Like Rob I also used Bin-Die with good success in eradicating onion weed in Sir Walter & King's Pride Buffalo lawn.

Time: 20th October 2011 9:58am

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Cathy says...
There is loads of good advice here but I am unsure what would be the best approach to take with onion weed that has invaded the garden and is coming up all around and through my rose bushes. What is the safest way to attack it without damaging the roses? I am concerned that even if I wipe Roundup onto the onion weed leaves they might then fall against the rose bush and poison it too! (Some of the roses have sentimental value otherwise I might be tempted to rip them all out, napalm the garden and start again!)

Time: 7th December 2011 10:08pm

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About the Author Cathy8
Sydney, NSW
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pete says...
tell me everything about omion weeds


Time: 12th December 2011 11:57am

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glenn says...
I dont use poisons so what i do is cover them with a thick layer of mulch .

Time: 12th December 2011 12:46pm

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James Plant Man says...
Guinea fowls eat fresh sprouting onion weeds as they appear, I have seen this with my own eyes. Good Luck

Time: 8th January 2012 7:50pm

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About the Author James Plant Man
south africa
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Selene says...
Stop trying to get rid of your onion weed. It is FREE FOOD! Eat it. It is sooo good for you and has so many anti cancer properties!!! It tastes just like onions and can be used in egg dishes, risottos, pasta etc...
Please stop using toxic chemicals on your earth!

Time: 2nd April 2012 10:02am

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Selene says...
Stop trying to get rid of it with poisonous toxic chemicals! Eat it!!! It is a lovely edible and nutritious herb which as anti cancer properties!!!


Time: 2nd April 2012 10:03am

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Jon says...
It is more than six moths since I upended the turf and removed the onion weed. None has returned to the previously affected areas and only a view onion weeds now exist anywhere, and they are removed when small.

When I cut the taller grass near the garden beds I take the resulting "straw" and lay it around the plants to stop weeds taking hold.

All going well, so far.

I will let you know if the dreaded onion weed emerges in winter.

All the best
Jon

Time: 3rd April 2012 2:13pm

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About the Author Jon9
Sydney
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Success! says...
I am pleased to say that digging out the entire garden bed, even around existing plants, then adding a layer of wet newspaper before filling with new soil has worked really well. No more onion weed or any other out of control weeds for that matter.
I am now contemplating doing the same with my wildflower garden which has been overrun by onion weed. I find that if the problem is large enough then poison does not work as it ends up seeping on to the plants too. Plus poison isn't good for the lizards or the little insects either.
Good luck everyone!

Time: 8th April 2012 12:21pm

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Seliment says...
Could someone please clarify what is "Onion weed". We have a weed everywhere in the Dandenongs. Its botanical name is Allium trifolium, and (proper) common name is "angled onion'. Many ppl (wrongly) call it various names including 'angled onion weed' and 'onion weed'.

Af far as I know, there is a completely different plant which is a declared noxious weed in South Aust which is called 'onion weed' in legislation.

Angled onion is a plant which smells of onion, grows from a white bulb to a plant about 20-30cm with strappy leaves and has white bell shaped flowers with black seeds. Will grow/spread from either bulb or seed.

Which plant are we talking about please?

Time: 17th April 2012 11:11pm

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About the Author seliment
Mt Dandenong
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seliment says...
Sorry, I made an error ..
The botanical name of Angled Onion is Allium triquetrum.

A good reference site is:
http://www.southgippslandweeds.com.au/gallery-weeds/angled-onion/

Joe


Pictures - Click to enlarge

Picture: 1

Time: 17th April 2012 11:41pm

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Nick says...
I've got this plant growing in the shady areas of my garden! It dies down over summer, then starts growing around now with beautiful flowers in spring. Shame it has a tendency to become weedy... I heard somewhere its edible?

Time: 18th April 2012 7:21am

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About the Author Nick T
Altona, VIC
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annie says...
I had a thought the other day regarding onion weed which is rampant in all my gardens. After rain, there seems to be more than triple the number of plants. As they come up close to my vegetables and other plants, I am not sure what to do for the best. Maybe a small hand held spear gun with a hole in the end that would shoot the chemical on the bulbs of the onion as well as those annoying little seeds they leave behind. But where would I find one, other than trying to make it myself? Goodness knows how. Anyone any thoughts? Annie

Time: 3rd June 2012 4:02pm

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About the Author annie7
Ballina NSW
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Seliment says...
Apply straight glyphosate to leaves with a 'dabber' bottle which are often avail for free from the environment dept of your local council.
The bottles are actually ( new) shoe polish bottles with the foam applicator on the top.

Best time to apply is just as flowering is about to start as that is when old bulb is depleted and new ones have not net formed.

By the way --- angled onion is edible -- was reported as such in Epicure section of The Age recently and apparently is widely eaten in Europe.
Pity they didn't keep the pest plant there!

Joe

Time: 8th June 2012 6:58pm

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About the Author Seliment1
Dandenong Ranges
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Ryanbuda.hubpages.com says...
Wild onion grass is a really tricky plant. On the one hand, You can eat onion grass. Check out my page on Hubpages where I talk about eating it)

http://ryanbuda.hubpages.com/hub/Edible-Wild-You-Can-Eat-Wild-Onion-Grass

But if you want to control onion grass, it is difficult because it is a weed I address that to:

http://ryanbuda.hubpages.com/hub/Wild-Plants-What-is-Onion-Grass-and-Wild-Onion-Grass-Control

Time: 18th July 2012 6:47am

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About the Author Ryanbudahubpagescom1
Connecticut
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Ethanhh says...
To get rid of onion weed, you have to prevent the bulbs storing food for growth. Onion weed can also produce seed. Cutting off the foliage at ground level will prevent the plants making carbohydrates in their leaves, and also prevent seed forming.In an unused garden area, you can do this by slashing, or mowing, the foliage to ground level, then covering the area with black plastic for several months. Anchor the edges of the plastic with planks, bricks or whatever you have to prevent it blowing away. Deprived of moisture and the sunlight that enables it to store carbon dioxide as carbohydrates (photosynthesis), the bulbs will weaken and die.
http://www.greenlawnturf.com.au/


Time: 22nd March 2013 4:47pm

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About the Author Ethanhh
NSW
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jennyr says...
Small area. Dug up and sieved the soil to depth of 800 cm, put it in an Otto bin for three months and the onion weed was still sprouting at the bottom of the bin when I emptied it. No water, air and covered with 2 metres of soil and they still survived!!! admittedly only two bulbs but very frustrating. No more onion weed now. Whew!!!

Time: 26th July 2013 6:56am

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MJ says...
I dug up a whole lot and got rid of the soil as best I could. Then I put thick newspaper down and mulched over it. A few are coming up here and there and I need to spray them. In a week or so, when it stops raining... It has reduced the number a lot.

Time: 26th July 2013 10:56am

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Littlefrog says...
I have controlled onion weed successfully by hand pulling large infestations when it is flowering. This is the only time of year that the bulbs come up (mostly - 95%) with the stems. Pull gently, dont yank.
This is no more work than individually poisoning each plant, or removing the topsoil, and very satisfying to see an infestation dwindle and disappear over 3 years.
The problem with the glyphosphates is they destroy the necessary fungal activity in the soil, and then you get more problems.
Cheers - Littlefrog.

Time: 23rd June 2014 9:38am

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About the Author Littlefrog
Nangkita. S.A.
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darwin says...
use super as it makes the bulbs grow to quick and they self distruct tried and it works.

Time: 5th July 2014 9:46am

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glengarry
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Julie says...
Would this work with oxalis - soursob - do you think? My block is overrun with the damned things.

Like onion weed, they are a bulb, and only digging gets rid of them. Even then, any tiny bulb left behind grows on, so it's almost impossible to get rid of them.

Time: 5th July 2014 11:02am

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About the Author Julie
Roleystone WA
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denise1 says...
Along with advice above, Make a avo each week to nip any leaf regrowth and this eventually starves them

Time: 5th July 2014 11:47am

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About the Author denise1
auckland NZ
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Jet says...
I saw my Rabbits like to eat it. So I thought I'd try. In the spring, when greens are expensive and not very nice, it's fine. Here's a recipie. Pull up the whole plant, little white bulbs and green stems. Steam it, till it's hot and wilted (2 minutes).Make a sause with peanutbutter and chilli sauce (tabasco or similar). Pour the suce onto the onionweed. A nice starter, inexpensive, tasty, nutritious. Also you can chop it up and add it to salad leaves or put it on top of soup as a garnish.


Time: 8th September 2014 1:41am

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About the Author Jet
haringey
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Brain says...
You should be commended Jet! Beats putting into the compost and only to have some of the bulbs survive and grow again.

Time: 8th September 2014 12:59pm

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About the Author Brain
Brisbane
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LOJO says...
I inherited onion weed from a friend that gave me a potted rose. Didn't realize what the bulbs were when they grew. After a couple of years I started getting suspicious of these bulbs so did some research. I was horrified to find they were noxious weeds.
I tried cutting off the flowers and dipping the stalks into neat roundup but that wasn't going to stop the rest. I have just removed all the soil from the garden bed. I dug down about 30cm. I started sifting the soil. Very effective but time consuming. I have now put the soil into bins and covered with water. I am hoping this will drown the small bulbs I missed. Not sure how many months to leave them. Prepared to let them drown for 6 months.
My neighbour said high concentrations of nitrogen can kill them. It is supposed to explode the bulbs. That might be a way of killing large amounts. If anyone else has tried this I would be interested to hear how it went.

Time: 29th April 2016 4:53pm

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About the Author lojo
West Wodonga
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EmmyLou says...
Hi! We had great success in eradicating onion weed from our rose garden. I used round up. As I didn't want to hurt my roses I was advised to wear rubber gloves and then on top of the rubber gloves wear cotton gloves (the white ones) then dip my hand in the solution and rub it all over the pesky onion weed leaves. This worked a treat! Took a couple of weeks for them to die off but they are pretty much gone. We also changed our sprinklers to a drip system on the rose garden so the only plants getting watered were the ones I wanted to grow! Another thing we did was mulch. All three things have gotten rid of the problem! Good luck :)

Time: 8th May 2016 5:47pm

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About the Author EmmyLou
Perth
#UserID: 13870
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AussieTuppie says...
EmmyLou, sorry to tell you, but my 7 month old puppy was poisoned last week by this plant.
She spent 12 hrs in intensive care, on a drip, fighting for her life!
Thankfully after 3 days, I'm happy to say that she survived, now home & back to her exuberant self.
Just thought you should know.

Time: 26th September 2016 11:14am

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About the Author AussieTuppie
Rowville
#UserID: 14650
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denise1 says...
We have eradicated it from our garden.It took a few years of digging out bulbs on occasion,and cutting off the growth. the main thing was making sure no flowers go to seed. After a few years there are no more seedlings.

Time: 27th September 2016 7:44am

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About the Author denise1
auckland NZ
#UserID: 6832
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hanrysmith1 says...
Im making a new lawn this year and would like to get a good mower for making stripes. I know I need a mower with rear roller, but id like to do some research into which type is best for me.

Time: 15th February 2018 4:40am

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About the Author hanrysmith1
Enter Postcode First,12404,
#UserID: 16781
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Fruitylicious1 says...
Hi Hanry

Husqvarna models 5521p and 7021p came in 1st and 2nd on top 5 petrol mowers review if your proposed lawn land area is less than an acre.

The best grass variety for making excellent lawn stripes are the cool season grass type like fescue cultivars.

As for roller attachment there's two available; Toro Striping System and the Scag Tiger Striper. Or you can make a DIY lawn striper if you have good hand skills.

Lastly, there's also a lawn mowing- striping competition in Australia among lawn nuts.

Happy Gardening :-)



Time: 18th February 2018 9:11pm

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Original Post was last edited: 19th February 2018 6:18am

About the Author Fruitylicious1
TAMWORTH,2340,NSW
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Su_zip says...
Hi Fruitylicious1, Bilbys eat it. But they're endangered.. goats also help but not to the point where they'd scratch around and eat all the bulbs like bilbys

Time: 14th August 2018 9:36am

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About the Author Su_zip
hornsby
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Badbabba says...
I had onion weeds everywhere for 30 years. Then decided to. use HEAT! Dig up the weed and then pour boiling water in the hole or use a kitchen heat gun. Worked every time. No weeks left and the heat kills any seeds or bulblets.

Time: 1st August 2019 2:10pm

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About the Author Badbabba
North Peth WA
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Julie says...
What is a 'kitchen heat gun'? New to me.

Someone used to make a gas weeder, but not sure if still available. I once saw a steam weeder that was very effective. We need a genius inventor to make a home garden version that is not too expensive.

Time: 3rd August 2019 9:27pm

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About the Author Julie
ROLEYSTONE,6111,WA
#UserID: 154
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lojo says...
My neighbour told me how to get rid of onion weed and it really works.
He said load the area up with high nitrogen because that will explode the bulbs. I used fresh chicken manure. I really loaded up that garden section with it, watered it in and mulched on top. Then I just left it for months.
It worked a treat, I was expecting to see the shoots coming through but they didn't. I did a soil test and just adjusted it a little and started replanting. so glad to be rid of that horrible weed.

Time: 6th August 2019 11:23am

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About the Author lojo
3690
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Julie says...
I wonder if this would work with oxalis? Must be one of the hardest weeds to kill.

Time: 7th August 2019 7:43pm

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About the Author Julie
ROLEYSTONE,6111,WA
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Janeygirl says...
What is a kitchen heat gun?

Time: 6th September 2019 5:48pm

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About the Author Janeygirl
Leeman
#UserID: 20827
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Bethany says...
Are we talking about allium triquetrum here?? It's edible and delicious! We use it for everything - chopped in salads, soups and stirfries, made into pesto, blended with sheep's cheese to make an awesome spread, instead of spinach in anything that uses spinach with garlic, etc etc etc. Whole plant is delicious: bulbs, leaves, flowers, seed-pods. And it doesn't give Mum (who has IBS and can be pretty sensitive to garlic and onion) any issues, so we love it. Only PLEASE CHECK THAT YOURS IS ALLIUM TRIQUETRUM before you try it; there are lots of things that are called onion weed and some may well be poisonous. And there are things that look similar - like snowflakes, white bluebells and lily of the valley - that are definitely very poisonous

Time: 6th October 2023 1:53am

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Original Post was last edited: 6th October 2023 1:57am
About the Author Bethany
DERNANCOURT,5075,SA
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