Lift tubers from the soil and store in dry peat in a cool, dry place. More information on storing and replanting tubers is available in Begonia , HGIC 1159. These winter-flowering begonias are compact and evergreen, growing to about 1 feet. Flowers are usually single but may be semi-double or double. Flowering occurs from late autumn to early spring.
Stems are usually weak and require support.
Pinch out the tips when the plant is young to promote bushier growth. The Elatior hybrids, which include the Reiger begonia, are similar to Lorraine begonias but they have larger flowers. Elatior begonias are available in flower all year round. Lorraine and Elatior begonias are usually discarded after flowering but can be restarted by cutting them back to within 3 inches of the crown. Reduce water and keep in a cool location.