Bougainvillea is a hardy tropical vine that grows in areas where winter temperatures remain above 30 degrees F. (-1 C.). The plant usually produces three rounds of vibrant blooms in spring, summer, and autumn. If you don't have growing space or live in a suitable climate, you can plant bougainvillea in a pot.
Fertilize the bougainvillea during the spring and summer, applying about a tablespoon of fertilizer once a month. Use a fertilizer low in nitrogen, such as hibiscus fertilizer, to encourage flowering production rather than excessive leaf growth.
Plant in loose soil and keep in a shady area. You can also start some in water if you like. ... Or, you can put it in a pot, curling the lower section around so all but the tip is covered with soil. No matter what route you take, treat with a rooting hormone, either one you sprinkle on the cuttings or one you water in.