When you plant the orchid, shape it. These trees typically have more than two trunks. You can divide them so that each has only one trunk. Each year when you trim the orchid, you need to repeat the shaping process. If branches cross over each other, you need to prune them to re-shape them. They should grow separately, each in its own direction. Pruning these wayward branches helps them grow into a canopy over the orchid’s trunk. You also need to trim off the water sprouts.