Begonias are considered tender perennials, or plants that can grow as perennials in limited areas and as annuals elsewhere. Also known as wax begonias, numerous Begonia varieties and colours exist.
Begonias are native to Brazil and have been used as a garden plant since the Victorian era. They are grown as perennials in U.S. Department of Agriculture Plant Hardiness Map zones 9 through 11, but as annuals in all other regions.
When grown as annuals, wax begonias bloom continuously between May and October. Begonias are not drought-resistant; their soil must be moist during hot summers.
If you want to keep your begonias alive past the winter but live outside USDA zones 9 through 11, bring them indoors. By placing them in a room where they get plenty of sunshine, your begonias will live year-round.