chill hours (forum)

Fruit lover myles starts with ...
hi just wanted to know an easy way to work out chill hours in my area?

thanks Myles

Time: 4th May 2013 8:47pm

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About the Author fruitlovermyles
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Fruit lover myles says...
i have found out the blog post on how to do it maybe i am not doing it right? lol because it says i have none surely i must have some....

Time: 4th May 2013 11:22pm

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Tommoz says...
I calculated 430 chill hours for 'Norah Head AWS' for 2012. This is a bit surprising as I thought you would get less given your proximity to the sea.

If you want to measure it yourself, you can do what I'm doing and order a USB temperature logger on eBay for $15. I'll place it near my orchard in a dry location and when winter is over I think I'll be able to whack it into the pc and the data will be very manipulable. I think you can set the gizmo to only record between 0 and 7 degrees, and from there your job would be even easier. But I imagine that you will have to organize this soon. I don't know when you are supposed to start calculating, but my mulberry has already lost all its leaves.

Just stick to all low-chill varieties where possible.
Blueberries: Sunshine Blue, Misty, Backyard Blue, Biloxi, Climax.
Cherry: Minnie Royal/Royal Lee from Flemings.
Peach: Earligrande

Time: 5th May 2013 1:02am

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Original Post was last edited: 5th May 2013 1:38am

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Fruit lover myles says...
that is interesting because the Norah head light house which is 12.8km gave me 13.5(499 hours) after all calculated but sadly hasn't been updated for 10 years lol so hours could be different now guess i have to go with Norah head aws since its been updated regularly what do you think?

Time: 5th May 2013 2:02am

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Fruit lover myles says...
is this the one your talking about? http://www.ebay.com.au/itm/USB-Sensor-Thermometer-Temperature-Data-Logger-Recorder-FREE-AIRMAIL-TRACKING-/221165878550?pt=UK_BOI_Electrical_Test_Measurement_Equipment_ET&hash=item337e837d16

Time: 5th May 2013 2:08am

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Tommoz says...
No. I think that one must be plugged in to a computer at all times to record temps.

I got http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=251267628051

Time: 5th May 2013 4:28pm

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Original Post was last edited: 5th May 2013 6:01pm

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Boris Spasky says...
Chill hours is a very imprecise science. Chill hours below 7.22C is not gospel. There are numerous models including the Utah model and variations thereof.
Somewhat confusing too is that temperatures recorded for the weather are from observations away from direct sun exposure, whereas Tommoz you are collecting from data out in the elements.
What is the correct methodology?

Time: 5th May 2013 10:01pm

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BJ says...
Ask someone near you if something will fruit. If you are trying something new its an experiment so be prepared to be dissapointed. Then you can tell others something likely will/wont fruit in your climate/area.

Time: 6th May 2013 9:41am

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About the Author Theposterformerlyknownas
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Fruit lover myles says...
thanks BJ common sense would say that. but i have had different answers from different people no one has given me a grounded answer they were all over the place i think will go will 430 and as a rough guide and just experiment buy mostly what will fruit here and buy other low chill fruits that people may not bother with and see what happens.we have a decent sized back yard but i don't just want a whole back yard of citrus i want some unusual stuff as well.

Time: 9th May 2013 9:09pm

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Tommoz says...
I'd recommend a fig tree, grumichama, cherimoya, dwarf mango tree.

Time: 9th May 2013 10:55pm

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Fruit lover myles says...
hi tommoz i have a Italian white fig and a cold hardy cherimoya ill check out the others maybe i could try dwarf Bowen that had at my local nursery and as far as the grumichama ill check that out. for these recommendations what are you basing them on?



Time: 10th May 2013 1:42am

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Tommoz says...
You mentioned that you wanted some unusual stuff. Grumichama is an exotic equivalent of the cherry. You could also grow Kiwifruit (Dexter or Bruno) although that takes a fair amount of space. Avocado is another option or perhaps jaboticaba?

Time: 10th May 2013 12:45pm

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Original Post was last edited: 10th May 2013 2:19pm

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gardenererer says...
Kei apple , persimon, pepino , raspberry ( worth a try). Vitis rotundifolia

Time: 10th May 2013 1:43pm

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Fruit lover myles says...
ah ok thanks tommoz :) and gardenererer some of the things like kei apple are subtropical which i do think my area is heading toward as weather changes are you suggesting i try subtropical stuff?

Time: 11th May 2013 12:04am

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Fruit lover myles says...
we are in a frost free in our area as well.anything anyone can suggest keep them coming? :)

Time: 11th May 2013 12:12am

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John Mc says...
I'd go through the list of plants available for sale, choose which one's you think you'd like to grow and do some research on their growing conditions. By all means, ask around and get as much info as you need so you feel like you have half a chance of success.
As you're confidence grows with your plants, you will get more adventurous and try even more exotic plants. You won't have 100% success with everything you collect. The learning process will never stop, which makes growing exotic fruit an inexhaustible amount of pleasure and excitement.
When you think you've seen it all, another new plant will hit you in the face and you will wonder why in the hell you have never seen or heard of it
before. It's still happening with me that's for sure. Recently, someone sent me some seeds of a lettuce that grows into a tree.
A good source of strange exotic fruits and plants is eBay, if you can trust them. Good luck.

Time: 11th May 2013 8:47am

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Anonymous says...
thanks for the words john :) the lettuce seed that grows into a tree is it tree cabbage? which does end up going to seed. http://www.ebay.com.au/itm/Kale-Cabbage-Walking-Stick-45-Seeds-Annual-/370807478699?pt=LH_DefaultDomain_0&hash=item5655d919ab

i know of another one called tree kale or tree collards which grow collard greens all year round and never go to seed but i have only seen them as a American thing and can only be grown by cutting the do have seeds but rarely and aren't true to seed.
Pictures - Click to enlarge

Picture: 1

Time: 11th May 2013 10:14pm

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John Mc says...
No, it's not the walking stick cabbage, I grew that a few years back.
It's called lactuca Canadensis, my friend Sandi might be able to tell you more about it, if she happens to read the thread. Apparently it grows wild around Cairns. I have no experience on it at all.

Time: 11th May 2013 10:55pm

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Anonymous says...
ah ok how did it go growing tree cabbage? and what is your method of keeping white butterflys away and from laying there eggs on the brassica leaves netting/mesh?

Time: 12th May 2013 12:46am

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John Mc says...
If the caterpillar numbers get too great to manually remove, I use Yates success to keep them under control. It's more of a biological control and harmless to humans.


Time: 12th May 2013 10:31am

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Anonymous says...
do think neem might do that same thing?

Time: 12th May 2013 4:02pm

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John Mc says...
Haven't used Neem

Time: 12th May 2013 11:23pm

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Anonymous says...
its funny i have been worrying about chill hours in my area temperate nsw and its seems it can vary town to town i was speaking to a guy who lives in wyong and he was growing all the things i was told not to grow lol can it really vary that much from my area chittway bay to wyong 5.7km that much?

Time: 19th May 2013 5:26pm

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Slicko says...
I wonder how reliable the chill hours quoted by nurseries for different fruit trees are.

Two of my subtropic peach trees are flowering now and we are still having nights of around 20c. One is quoted at 150 and the other at 225 hours and it is not unusual for us to get temperatures as low as 6 or 7 but that is quite a few weeks away. I am puzzled by what to do with these trees once we get into winter.

The smaller tree has lost most of its leaves and the other has lost maybe half. My nectarine is still fully leaved.

All the trees are shooting new growth.

Should I strip these flowers off, strip the leaves off and what should I do about spraying for leaf curl?

I am really puzzled and will appreciate any comments.

Time: 11th March 2015 10:56pm

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Original Post was last edited: 11th March 2015 10:54pm

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Markmelb says...
Dont be too worried - a friend sent me a pic of their cherry with a flower on it in Melb - just a weird season thing :)

Time: 11th March 2015 11:53pm

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Original Post was last edited: 11th March 2015 11:52pm

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