Please help. I’ve been growing a lemon plant (from a lemon seed) for about two years now. It’s been a very slow grower, but always healthy. I read about overwintering, and have had it in my attic for the past few months (cold but next to a window for bright morning light). It’s been doing great, until today when I checked on it and the leaves are fairly brittle and shriveled. I’m in the south, so the temps have been cold for here, but not below freezing (outside). What should I do? Was watered about two weeks ago. Soil is dryish, slightly moist a few inches down. Stem is rigid and green. TIA