Outsidepride Wax Begonia Semperflorens White Plant Seed - 5000 Seeds Begonia Wax White grows as an annual in USDA Zones: 3 - 10 and thrives in partial shade areas. Begonia Semperflorens grows to a height of 6 - 8 inches with white blooms from spring until fall frost. This heirloom flower makes a great container plant, house plant, bedding flower, or shade garden flower. Sow at 2 - 4 seeds per plant in well-drained soil and keep moist until germination occurs in 14 - 28 days. Our seeds are always Non-GMO and packaged for the current year.