Beautiful and prolific
"I started these in indoors in the spring and they seemed very slow to start. 2 of 3 sprouted so when late May came ( last frost) I planted those two plus the unsprouted tuber plus another begonia I bought as I worried about these 3 tubers not being enough plus two other annual pants for this window box ( shade all but 1-2 hours of overhead sun per day) . Once they started, they became very prolific. Even the tuber that never started indoors grew. When I dug the tubers up in the fall, they were about 4-5x the original size. I have overwintered but not sure if I will be successful. I do plan on starting indoors again despite the hassle of taking care of watering. I do best with automatic watering. :)"