Begonia 'Santa Cruz Sunset' (Begonia boliviensis). 'Santa Cruz Sunset' packs both flower power and bold color. It boasts a compact, upright habit during its early stages of growth, but as it matures, plants begin to cascade over edges of pots and baskets. Fiery bright red-orange, bell shaped flowers cover the entire plant, creating a lush tropical look. At maturity it averages 12-16" in height and spreads 16-20".