When looking for a home for your bougainvillea, think about how you plan to train it. These are vigorous-growing plants that can quickly take over a wall or garden area, but can be trained and maintained to fit a desired setting. Bougainvillea can also be used in containers and trained as a shrub or sprawling groundcover.

Because of bougainvillea's woody habit and vigorous growth, these plants lend themselves very well to being manipulated and trained in a variety of ways. The most common, especially in tropical areas where plants are hardy, is to allow these plants to climb walls and trellises. This is the simplest way to display the wonderful blooms of bougainvillea.

They can also be used in hanging baskets with minimal care. Because these plants don't have tendrils, they do need some manipulating, but as a hanging basket plant, no training is needed. Bougainvillea also make fantastic topiaries. Since they are so fast growing, it is easy to create tall topiary plants with minimal effort. On a smaller scale, bougainvillea can make stunning bonsai specimens. This takes time over the course of many years, but with relentless pruning some unique bonsai can be made.

Source: https://www.bhg.com/gardening/plant-dictionary/vine/bougainvillea/