Begonia ravenii - Wild Begonia

Rich humus soil, moist to wet, without limestone, in partial shade. In rich humus soil, begonias self-seed, with seeds or small bulblets developing in the axils of the leaves and producing flowering plants the following year. Tolerates temperatures down to approximately -9°C (15.8°F) without protection; below that, if the rootstock is covered with a thick layer of dead, dry leaves. Cool, highly humus-rich soil, retaining water, but well-drained and in the shade. Rarely cultivated.