Some of the best flower garden layouts include a few plants in containers that offer a beautiful color show and wonderful tropical addition to a summer pool landscape. Bougainvillea not only gives tropical color but also can be grown in a variety of ways. Under the right conditions they can almost grow as a vine climbing up a trellis. However, they lend themselves as excellent candidates to being pruned and shaped. The downside to the bougainvillea is the barbs or thorns they hold on the trunk and branches. Keep children away from them. The plus of the thorns is they make a good natural fence if you use them that way. Thorns aside the bougainvillea displays a breath taking tropical color display difficult to duplicate.