Re: what zone will basjoo survive in with no care?
We use a different system in Canada. Yes, there are differences in the climate of one zone 7 to another, but a plant that does not survive in one zone 7 will also not survive in another zone 7, no matter where it is. True, we don't as much north/south growing area as the U.S., but a zone 7 in Ontario I would be would have the same temperatures as a zone 7 in B.C. If the temperatures are colder, it is not the same zone. In the U.K., most areas would be compared to a Canadian zone 8-9, which is comparable to the pacific northwest. It would make it very confusing to have a plant labelled as being hardy to your zone, then find out it isn't, because you live in the wrong place.
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