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Dec 2, 2017 6:15 AM CST
|I got an ardisia crispa as house plant a few years ago. It was not happy inside but loves it outside where I moved it early spring this year.
I have checked on hardiness to see if it could stay out for the winter in Richmond, VA (7A/7B). The first site I checked said it was hardy to zone 7. Later I went to another site, and it said zone 9-10. Big discrepancy.
Does anyone know and/or recommend a reliable (accurate) source where I could locate the information. Thanks.
Name: Will Creed
Professional indoor plant consultan
Dec 2, 2017 7:44 AM CST
|My sources say that Coralberry is Zone 9-10 and that it can withstand temps as low as 40 degrees F. It does best if temps are kept above 50 in winter. It is definitely not frost hardy.
Horticultural Help, NYC
I now have a book available on indoor plant care
Dec 2, 2017 8:24 AM CST
|Dave's is my go-to for hardiness info, which says Z8+ for A. crenata:
A. crispa seems to be s synonym of A. crenata. You will probably find a lot more info using A. crenata.
I don't think I would risk it in Z7 unless you have a very protected spot. Being in a pot would negate the safety of the protected spot. The difference between Z7 & Z8 is a dramatic one. In Z7, the ground can freeze. That is not going to happen in Z8 but there is quite a bit of frost in a usual winter in Z8.
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