Dwarf irwin (forum)

vlct starts with ...
Has anybody tried the Irwin mango ?
This is a drwaf purchased from daleys..
There's no sign of any graft. Are all irwins grown from seed ?

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Time: 23rd August 2013 7:09pm

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David_WM says...
Irwin does not grow from seed, it must be grafted. I have bought a grafted mango ( I think it was an Irwin too, but different nursery) which I later realised was just the rootstock when I couldn't find the graft. I took it back to the nursery and changed it over. Look carefully to be sure, but most commercial mango grafts are cleft grafts which should be fairly easy to find. Your mango looks pretty healthy so if it is an Irwin, then I'd be expecting some buds pretty soon. My Irwins have thicker stems than yours, which appear slender to me.

Time: 25th August 2013 12:36am

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vlct says...
Hi David, thanks for the response.. There is no sign of any graft. I don't get it! I purchased it here from daleys. There pretty trust worthy.. how long did urs take too fruit?
What's the flesh like ?


Time: 25th August 2013 10:32pm

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Brain says...
I read and believe that Irwin is a monoembryonic variety - not true to type from seed, so it has to be grafted. If the tree is well grafted and older, i.e. the bark is brown, the graft point is very hard to spot. You are looking for a funny V shape (or W) about 10 cm to 15 cm above the soil on the main trunk.

If the conditions are right for the mango, it should at least flower from 2nd year of purchase ... assuming you've missed out on the 1st year.

Time: 26th August 2013 1:09pm

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vlct says...
I got in contact with them today and it turns out its a bowen w Irwin tag. Said they will send another. Not that I have any room. But now when I think about it, proberly better off considering I'm in marginal climate.
Just have to wait couple more years for any fruit.

Time: 26th August 2013 5:43pm

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David_WM says...
They're not so vigorous in a cooler area so why not keep both. Irwin should be more productive than KP.

Time: 27th August 2013 12:27am

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Brain says...
just a note, seeding KP can flower as early as 3rd year but 5th/6th year seems to be the norm reported by various ppl.

Time: 27th August 2013 9:53am

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David_WM says...
I have found that in Perth my KP seedlings are flowering in their 3rd year. I think the colder winter places them under a bit more stress and gives a stronger flowering stimulus. Not that its a good idea to let them carry the fruit when still small, as you'll lose a whole season of growth to producing a couple of (small) fruit. At the moment I have one seedling which is an R2E2 which I planted in January 2011 and it is in flower.

Time: 27th August 2013 11:53pm

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vlct says...
How many fruit are you harvesting p/yr David ?

Time: 28th August 2013 1:55pm

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vlct says...
From k.p

Time: 28th August 2013 1:56pm

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David_WM says...
Vict my mangoes are mainly young ones, and larger ones I have multiple grafts on, so I can't really give a figure for fruit per tree. I have a 2 year old graft on part of a 6 year old KP. The Irwin parts of the tree bears much more fruit compared to the KP part.
In general KP is not regarded as a highly productive variety, and has a reputation for being inconsistent year to year, whereas Irwin is a very productive variety.

Time: 30th August 2013 12:27am

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vlct says...
That's awesome.. what sort of graft did you use ?
How about the taste between the two ..
Thanks again ..

Time: 30th August 2013 7:08pm

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David_WM says...
I did a splice (or whip) graft for that one. I also use cleft graft a lot. Cleft grafting is a bit easier as once you put the scion in it doesn't tend to try to fall out while you are taping it. (see Daley's video) I have 4 varieties on that tree now. The Irwin tasted very nice, quite sweet and mellow. I think letting them ripen on the tree helps their sugars develop. I find my KP here do not taste as sharp as some of the ones from the shop. I'm not sure why, maybe orchard grown ones tend to be picked earlier an still retain more acid. The Japanese love Irwin and grow them in hothouses commercially. They are picked when fully ripe, each fruit is bagged and has a bungee string attached so when it falls it doesn't hit the ground.
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Time: 31st August 2013 12:04am

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John Mc says...
David_WM Have you used late winter scionwood in bud swell?

Time: 31st August 2013 8:36am

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vlct says...
Wow look how red those Irwins are.!!
I don't know anyone down here w an Irwin, only kensignton.. I've successfully grafted feurte onto my wurtz avo. If only i could get my hands on a cutting..
What material are your bags ? Similar to fishing net..
Cheers David

Time: 31st August 2013 9:01am

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David_WM says...
Hi John, no I haven't tried that. I don't tend to graft in this time of the year as I think it is best to have the plant that is being grafted on to be growing vigorously, and in these parts where the winter is cool they are just starting to recover from winter. I prefer to wait until the weather has warmed up.

Time: 1st September 2013 2:08am

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David_WM says...
Vict that photo is of greenhouse grown Irwin in Japan, not one of mine. You can buy fruitfly exclusion bags here which you could use in the same manner.

Time: 1st September 2013 2:11am

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