The first thing it will need is mucho light. Your brightest window, even a greenhouse, is not as bright as outside. You will also have to check the water; if you do manage to give it enough light, (maybe supplementing natural light with some electrical light during the short days of winter) you will need to provide adequate water. However, if the plant is semi-dormant, too much water can rot the roots. Also, in lots of houses, the winter air doesn't have enough humidity. Here are some methods for overwintering:

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