Camellia sinensis is the plant you want for growing traditional tea leaves. Dried mature leaves produce black tea; young leaves yield a less acidic brew known as white tea. Allow plants to reach 3 to 5 feet before picking leaves, which you can do twice a year. Prune plants when they’re young to cause branching, which gives you more stems to harvest. Plants are winter hardy in Zones 8-10. Grow them in pots in other zones. Feed tea plants lightly—only in spring.