Quart plant from Elizabeth Angus Bougainvillea. The Elizabeth Angus Bougainvillea loves the heat, but if you don?t live in a subtropical climate or simply make a container plant and bring it inside when the temperature drops to 40 degrees. If you have a sunny room, your Bougainvillea might still retain its gorgeous colors, even in the winter. Bougainvillea is a natural climber up to 12 feet and can also be treated by a regular-sized shrub. They cover walls, pergolas, fences. The bougainvillea blooms all year long, in waves but in the dry season, the flowers are most concentrated. It loses its flowers under heavy rainfall or when excessive moisture. The bougainvillea requires little watering and full sun. Zones 9 to 11.