Begonia Wax White Begonia Semperflorens is a tender herbaceous perennial, which is mostly grown as a garden annual. This attractive, compact flowering plant can be grown from Begonia seeds. Wax Begonia features bushy foliage with succulent stems and tightly packed waxy green leaves. White Begonia produces clusters of single or double white flowers, and it blooms throughout the entire season until first frost. The showy and fragrant Begonia flowers attract hummingbirds, butterflies, and bees. Wax Begonia can be grown as a perennial in USDA zones 8-11.