Citrus > Cold Hardy Citrus

Citrus damage after freeze

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vnomonee:
We got down to 5f for a few hours one day and then again 1f for a few hours later on. My tai-tri and citrumelo unprotected look alive, just some tip damage on younger growth. Prague grafts on taitri and poncirus look ok, some brown spots (maybe mandarin cells damaged?). Ninkat x poncirus lost youngest growth but otherwise alive. all poncirus+ and precocious poncirus is alive. yuzu is dead to the base again. morton graft on citrumelo dead, morton on tai-tri looks alive.

tedburn:

--- Quote from: Citradia on March 07, 2023, 09:51:06 PM ---I’m so discouraged after the hard December freeze, I am close to quitting citrus altogether. I lost or suffered severe damage to everything except poncirus. My power was out for two hours during a 2 degree freeze with a high of 8 degrees and below freezing for about five days. That means my heaters were off in cold frames and we couldn’t get generator to start to get heaters back on. Then, I figured out I had used too long of an extension cord to supply power to my heaters in the valley orchard, so basically those citrus got no power or heat all winter until after the week of hard freeze, so they’re all dead except the side of the yuzu that was literally touching the side of the big water barrel.

Total losses:
Rio Red grapefruit ( heaters too small)
Seville
Bergamot ( too damaged to keep but alive)
Shiranui ( valley- no power)
Sugar Belle ( valley-no power)
Ichang lemon ( valley-no power)
Citradia air layer ( covered only, no barrel)
Citradia on poncirus air layer unprotected
Citrumelo 80-5 unprotected
Thomasville unprotected
Dunstan unprotected
Benton unprotected

Alive but severely damaged by house and got power back after two hours without it:
Owari
Kimbrough

Minimal leaf loss or tips of leaves damaged with power off two hours:
Seedless Changsha on flying dragon
Meiwa kumquat ( gets heat from French drain on south side of house)
Croxton grapefruit ( French drain south side of the house)
Saint Anne ( has two large barrels up against west side of tree)

My best survivors that didn’t have ground heat from French drain and only water barrels in a cold frame when heaters went out are Saint Anne and Changsha. My potted grafted-on-poncirus citrumelos and citradia trees were also undamaged.

--- End quote ---

Oh Ctradia,that s really hard, I' m sorry for you. But don ' t skip your citrus,  enjoy your survivors and perhaps invest in more hardier citrus as Prague and keep them on Poncirus.
And perhaps optimize still your passive protection with water barrels and fleece and perhaps places with not to early winter sun.
Enjoy the new sprouts of your survivors.
Regards Frank

Citradia:
Thanks, tedburn. I’m planning on putting my Prague on poncirus and citrumelo on poncirus that are currently in pots in ground in cold frames to test them out for next winter. I’m scaling back though. I’ve had too much to protect. Too much work for no reward. It also looks bad having tent city in the yard seven months out of the year.

Perplexed:
So far only 5* citrumelo, taitri, and dragon lime are showing signs of life and are flushing now. Everything else is either dead or major stem dieback, but the wood for the some species is still green. Will be more specific probably in May or Summer so I can see the full extent of damage.

manfromyard:

--- Quote from: Citradia on March 08, 2023, 07:34:44 AM ---Thanks, tedburn. I’m planning on putting my Prague on poncirus and citrumelo on poncirus that are currently in pots in ground in cold frames to test them out for next winter. I’m scaling back though. I’ve had too much to protect. Too much work for no reward. It also looks bad having tent city in the yard seven months out of the year.

--- End quote ---

I have also started scaling back. I have bought  a few replacements, but now will be maintaining less trees. The hardiest ones stay, but I've reduced my plants by a lot.

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