Hi, Deborah I'm not an expert on Begonias, but I did plant a few seeds of B. boliviensis about the first of January under a flourescent light fixture. Begonia seed is very small, and slow to get started. They mostly need to be kept warm--about 70-75F, and moist. Drying out is fatal until they've reached the tuber formation size. My seedlings now have one or two leaves about 3/16" across, and now will start to grow faster. They should flower by mid-summer here. B. boliviensis is fairly hardy, and can be left in the ground to about Zone 7 or 7b. Not totally dry, just not soggy wet when dormant. I haven't tried digging it and keeping it indoors in winter, but would treat it like tuberous begonias. Someone else may have better suggestions. Ken