Citrus > Cold Hardy Citrus
looking for most cold hardy poncirus trifoliata
GarySmith:
Hello, I am in a zone 5b part of michigan and want to grow citrus. I read that FD can handle -20c which is about the average winter low here. I would prefer to not have to add extra winter protection. I am wondering if there is a form of poncirus trifoliata that can handle a few degrees colder so I have a little more wiggle room in terms of cold tolerance.
kumin:
A trial could be attempted be sowing a large population of the highest percentage of zygotic Poncirus seed available. Provided the seedling population shows variation in hardiness, the hardiest specimens might attain your goal. If your goal is beyond the genetic capability of the seedlings you plant, success would be unlikely.
Ilya11:
According to this there are naturalized stands of PT in Illinois, Missouri and Kansas
hardyvermont:
--- Quote from: GarySmith on January 14, 2023, 09:09:12 PM ---Hello, I am in a zone 5b part of michigan and want to grow citrus. I read that FD can handle -20c which is about the average winter low here. I would prefer to not have to add extra winter protection. I am wondering if there is a form of poncirus trifoliata that can handle a few degrees colder so I have a little more wiggle room in terms of cold tolerance.
--- End quote ---
I grew Poncirus in Vermont. There is a posting somewhere of someone growing it in zone 4 with frost cloth. It is not the cold that kills it, but wind and winter sun. If you can place it out of the wind and in the shade in winter it will survive.
bussone:
--- Quote from: GarySmith on January 14, 2023, 09:09:12 PM ---Hello, I am in a zone 5b part of michigan and want to grow citrus. I read that FD can handle -20c which is about the average winter low here. I would prefer to not have to add extra winter protection. I am wondering if there is a form of poncirus trifoliata that can handle a few degrees colder so I have a little more wiggle room in terms of cold tolerance.
--- End quote ---
I would talk to these guys:
https://greenstreettree.com/hardy-orange-in-michigan-2/
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