Seeing these great tuberous begonias hanging from the cliffs in northern Argentina as we drove along in 2002 was, indeed, an incredible experience. The arching stems form a 2' wide clump and are clothed in pointed angel-wing type leaves. At the end of each stem are amazing 2" long, bright orange-red bells that attract hummingbirds even though they produce no nectar. In our shaded garden, these have performed wonderfully, drawing raves from all who pass by. Begonia boliviensis does not emerge from dormancy until June, so chill out. In colder zones, Begonia boliviensis is an amazing pot or basket plant.