Tropical Fruit Forum - International Tropical Fruit Growers



Author Topic: Hardening a citrus tree Cold frame for -5F cold front  (Read 538 times)

poncirsguy

  • Member
  • ***
  • Posts: 179
    • Cincinnati, Ohio, USA, 6a/6b
    • View Profile
Hardening a citrus tree Cold frame for -5F cold front
« on: February 05, 2021, 03:09:34 PM »
Sealing all leaks in cold frame setup to keep cold hardy citrus trees  alive through a night of  -21C / -5F




brian

  • Hero Member
  • *****
  • Posts: 1606
    • Pennsylvania (zone 6)
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #1 on: February 05, 2021, 04:26:41 PM »
That looks pretty solid.  I think it'll work.  Maybe put a light bulb in there for some extra heat if you're worried

poncirsguy

  • Member
  • ***
  • Posts: 179
    • Cincinnati, Ohio, USA, 6a/6b
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #2 on: February 05, 2021, 07:14:49 PM »
Thanks.  It already has 2 CFL's 13 watts each.  I will be adding more before the big drop.

brian

  • Hero Member
  • *****
  • Posts: 1606
    • Pennsylvania (zone 6)
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #3 on: February 05, 2021, 08:37:12 PM »
I assume you already realize this but... you could just swap the CFLs for incandescent if heat output is what counts :)

poncirsguy

  • Member
  • ***
  • Posts: 179
    • Cincinnati, Ohio, USA, 6a/6b
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #4 on: February 05, 2021, 11:52:49 PM »
Brian  Yes I did.  I will be adding 8 more CFL's with more light with the heat.  It is getting close to the time this tree would start growing if it were in its normal growing zone.

Millet

  • Moderator
  • Hero Member
  • *****
  • Posts: 4089
    • Colorado
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #5 on: February 06, 2021, 01:29:37 PM »
Is that presently  a fruiting tree?

poncirsguy

  • Member
  • ***
  • Posts: 179
    • Cincinnati, Ohio, USA, 6a/6b
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #6 on: February 06, 2021, 11:31:25 PM »
The fukushu kumquat tree at 7 feet tall and 5 feet diameter should be but isn't.  The new Zealand lemonade is actively producing fruit.
« Last Edit: February 06, 2021, 11:33:25 PM by poncirsguy »

Millet

  • Moderator
  • Hero Member
  • *****
  • Posts: 4089
    • Colorado
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #7 on: February 07, 2021, 03:09:11 PM »
Poncirusguy, good things come to those who wait.

Citradia

  • Hero Member
  • *****
  • Posts: 810
    • USA/NC/Old Fort/6B
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #8 on: February 08, 2021, 09:14:47 AM »
I tried heat lamp bulbs inside greenhouse-like enclosures before but had issues; the bulbs would shatter overnight and the trees still froze to death. It made me wonder if the humidity inside or the rapid change from cold to hot when the bulbs came on made them shatter. Thatís one reason I now use the 250 watt blowing soleil space heaters.

poncirsguy

  • Member
  • ***
  • Posts: 179
    • Cincinnati, Ohio, USA, 6a/6b
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #9 on: February 08, 2021, 09:44:13 AM »
CFL's and LED's don't have that problem of shattering.  You have to use more of them but then the tree starts to grow and flower.

Citradia

  • Hero Member
  • *****
  • Posts: 810
    • USA/NC/Old Fort/6B
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #10 on: February 08, 2021, 11:18:52 AM »
Well, hopefully it doesnít stay so warm inside the enclosure that they break dormancy and start growing in February or March since youíre going to have freezing temps through April which you know will damage an actively growing tree in early spring.

lebmung

  • Hero Member
  • *****
  • Posts: 945
    • Romania, Bucharest,7b (inside city 8a)
    • View Profile
    • Plante tropicale
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #11 on: February 13, 2021, 09:01:40 AM »
Put blankets on top, trees can survive without light for two weeks or even a month . Also carbon wire used for pipes like 200W will keep that encloser warm.

poncirsguy

  • Member
  • ***
  • Posts: 179
    • Cincinnati, Ohio, USA, 6a/6b
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #12 on: February 13, 2021, 11:24:16 PM »
Lots of ripening fruits, with new flowers and many new growth shoots in mid January.  No heat or lights.  I have to keep the tree worm enough to keep it growing and safe for the rest of the cold season.





brian

  • Hero Member
  • *****
  • Posts: 1606
    • Pennsylvania (zone 6)
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #13 on: February 14, 2021, 12:26:06 AM »
That's a really nice looking tree.  No bugs, no discoloration.  Nice and green, and blooming to boot.

Millet

  • Moderator
  • Hero Member
  • *****
  • Posts: 4089
    • Colorado
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #14 on: February 14, 2021, 02:10:31 PM »
Poncirusguy, you have shown a lot of ingenuity growing your tree in Ohio.  Great looking tree.  Good work.

jimmy_va

  • Member
  • ***
  • Posts: 30
    • usa,va,springfield,7
    • View Profile
Re: Hardening a citrus tree Cold frame for -5F cold front
« Reply #15 on: February 18, 2021, 02:17:18 PM »
Great job Poncirusguy!

 

Copyright © Tropical Fruit Forum - International Tropical Fruit Growers