Answer: Charmed Wine Oxalis is a tender perennial cold hardy to zone 8, but it can be overwintered indoors quite easily. In fact many people grow oxalis as houseplants year round. Keep the plant in a location with bright, filtered light and low humidity. Oxalis go into a semi-dormant period in winter so go light on the water and don?t fertilize. When new growth appears in late winter or early spring, move the plant to a brighter location and begin fertilizing again. (For container plants I feed with a half-strength dilution of water soluable fertilizer such as Miracid or Peter's, feeding every 2-3 weeks.)
Best wishes with your plant!
Q&A Library Searching Tips