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Old 13-Dec-2007   #9
rockm
bonsaiTALK ArchMaster
 
Join Date: Oct-2003
Location: Fairfax, Va
Country: USA
Posts: 4,561
I would keep the plant outside near a south facing wall on (or in) the ground with the pot mulched under seven or eight inches of pine bark, or right up to the first branch. I'd also surround the plant with a burlap barrier on all sides. I'd let snow cover the plant entirely -- if possible.

If you only have the option of keeping it indoors, I would not keep it on the windowsill. I tried to overwinter a boxwood inside on a southfacing windowsill for a winter. It died in a few months--. Someone who has successfully overwintered Kingsville inside may be able to provide better advice on how to do it successfully.
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