http://naturehills.com/gardening/blogs/common_questions_answered/archive/2009/06/30/are-begonias-tubers.aspxBegonias are tubers that can be started indoors in the spring; about 6 weeks before the last frost. Begonias are popular in flowerbeds, for hanging baskets , as container plants, and for indoor houseplants. That's one versatile plant! Like true queensenCommunityServer 2007 SP1 (Build: 20510.895)