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Author Topic: Upgraded cold frames for growing trees.  (Read 216 times)

Citradia

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Upgraded cold frames for growing trees.
« on: October 09, 2017, 05:00:27 PM »
My seedling Changsha is getting too tall and Rio Red on FD is bigger this year. Will cover them in 4 mil plastic and have one side to roll up on east side of structure to vent on warm days. Space heater with thermo cube in each. Plan to disassemble the Rio Red frame next to house in spring and put up again next fall; used screws.




cory

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Re: Upgraded cold frames for growing trees.
« Reply #1 on: October 09, 2017, 06:53:09 PM »
Looks nice.
Cory

Millet

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Re: Upgraded cold frames for growing trees.
« Reply #2 on: October 09, 2017, 09:02:40 PM »
Looks like it should work.  Mr. Texas had a temp. greenhouse he put around his tree, during a cold snap.

Tom

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Re: Upgraded cold frames for growing trees.
« Reply #3 on: October 10, 2017, 11:02:03 PM »
Looks great. Nice job !

Citradia

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Re: Upgraded cold frames for growing trees.
« Reply #4 on: October 11, 2017, 05:52:25 PM »
Thanks!

eyeckr

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Re: Upgraded cold frames for growing trees.
« Reply #5 on: October 11, 2017, 08:45:41 PM »
Functional and ornamental! Two thumbs up!!

lebmung

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Re: Upgraded cold frames for growing trees.
« Reply #6 on: October 12, 2017, 06:06:10 PM »
A lot of work!
Use double layer polyfilm, it will be 30% warmer inside. And at the base mulch with dry leaves.

LaCasaVerde

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Re: Upgraded cold frames for growing trees.
« Reply #7 on: October 15, 2017, 09:05:24 PM »
Great job on your cold frame!   

Citradia

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Re: Upgraded cold frames for growing trees.
« Reply #8 on: October 16, 2017, 01:21:48 PM »
Thanks!

SoCal2warm

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Re: Upgraded cold frames for growing trees.
« Reply #9 on: October 16, 2017, 04:15:45 PM »



That's a Satsuma mandarin in there, and although kind of flimsy this should be more than suitable for zone 8. Also notice there are some water containers inside to help hold heat.

Millet

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Re: Upgraded cold frames for growing trees.
« Reply #10 on: October 16, 2017, 09:52:43 PM »
SoCal.  if you dye the water black, or paint the jugs black the water will absorb much moer heat during the day.

arc310

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Re: Upgraded cold frames for growing trees.
« Reply #11 on: October 16, 2017, 11:10:18 PM »



That's a Satsuma mandarin in there, and although kind of flimsy this should be more than suitable for zone 8. Also notice there are some water containers inside to help hold heat.

nice! where did you find that frame at?

Tom

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Re: Upgraded cold frames for growing trees.
« Reply #12 on: October 17, 2017, 01:14:29 PM »
SoCal2warm, Iím worried about it getting too hot in your cold frame. The clear plastic can get over 100íF on a bright day. Donít forget to water more than probably usual because the soil will dry out quickly. The more you can vent on hot days the better. How cold can you expect in this location at night ? Southern California is one thing but zones 8 and 10 confuses me.

Iíve had terrible luck painting plastic black. Dyeing your water black might be easier. Iím also worried about your yellow leaves. Iím afraid they are all getting ready to shed and then you will have a problem....

Tom

Citradia

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Re: Upgraded cold frames for growing trees.
« Reply #13 on: October 17, 2017, 09:02:43 PM »
I think I've seen socalwarm's greenhouse at Big Lots. I'm pretty sure it has a zipper-type door that opens to vent. I would like to have a quick set up green house like that, but I get high winds on top of the mountain here in winter, so I have to have heavy frame work for my coverings. I use black plastic garbage cans, 32 gallon, and spray painted some 5 gallon buckets and some gallon milk jugs to pack around my trees in winter. The black paint flakes off after a few years but so what. I have found that unless the water container is right up against the plant, there is not much thermal protection/ benefit. The plant tissue higher than the top of the water barrel tends to die off with the deep freeze. I've also noticed that when it is extremely cold, single digits or zero Degrees F, unless you have a heater in your plastic covered enclosure, the temperature in the enclosure will drop a degree or two every minute or less even with water barrel and jugs of water in there. Water barrels help some, but I don't think they are as influential as as they are touted to be,at least not in extreme cold situations. I still do them anyway!

Citradia

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Re: Upgraded cold frames for growing trees.
« Reply #14 on: October 17, 2017, 09:06:32 PM »
Addendum: I also think filling our enclosure with water containers helps to take up volume of air space inside enclosure which is less air for my heater to have to heat up.

 

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