Citrus > Cold Hardy Citrus

Sour Orange cold hardiness

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christianmom:
I've been reading up on sour oranges and wonder if anyone is growing them and how cold hardy they are. Are there any interesting varieties worth growing for the zest and juice? I actually have a Yuzu grafted onto sour orange (Brazilian sour orange) rootstock and if the rootstock suckers I want to try to root the suckers.

Millet:
It is difficult to give a specific degree of temperature, Sour Orange is not as cold tolerant a Trifoliate Orange, but is not all that far from it.

christianmom:

--- Quote from: Millet on December 03, 2024, 04:56:19 PM ---It is difficult to give a specific degree of temperature, Sour Orange is not as cold tolerant a Trifoliate Orange, but is not all that far from it.

--- End quote ---

Ok, that's encouraging, definitely on my list to grow outdoors with protection on frosty nights.

Mulberry0126:
We are growing Taiwanica lemon/Nansho Daidai which is supposed to be a type of sour orange. It tastes more like a lemon/pummelo and makes a very pleasant lemonade. It's quite hardy and so are it's hybrids.

Florian:
I had a Yuzu that was grafted on sour orange and it died in its first winter after only -8C. None of my other citrus (grafted on Poncirus and Citrumelo) showed damages that winter.

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