Ask a Question forum: ardisia crispa hardiness

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Richmond, VA
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.
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Name: Tiffany purpleinopp
Opp, AL 🌵🌷⚘🌹🌻 (Zone 8b)
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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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