Begonia Tuberous Double Mixed Colors Begonia Tuberosa is one of the most impressive annual flowers in a garden. Begonia seeds must be started indoors, and the growing Tuberous Begonia forms the small, upright, and tightly bushy plant with dark to medium green foliage. The Begonia plant is a heavy bloomer that produces large, fully double, red, white, yellow, orange, and pink flowers. One of the the best characteristics of Begonia is that this flower blooms all-season long in the shady areas where other annuals do not perform.
