Start your tree with a small plant or one that can be pruned back to a single stem in the spring before the plant has sprouted many leaves. Plant the hibiscus in a pot just slightly larger than the root ball.
Sterilize a sharp pair of pruning shears by wiping them with alcohol, bleach or hand sanitizer containing alcohol. Wait about 15 seconds after applying the solution before cutting to give the disinfectant time to work. Wipe the blades between each cut you make.
Cut the plant back to one-third its size. Prune the lower branches from the sides of the stem, cutting close to the stem but without cutting into the stem. Don't remove the leaves or branches that are growing on top of the hibiscus.
Insert a tomato or bamboo stake in the dirt right next to the plant's stem to add support as it grows. Gently tie the stem to the stake. Reset as needed to keep the stem straight.
Water well and place the plant in a sunny location.
Continue to pinch leaves that sprout on the bottom of the plant as it grows, leaving just those on top of the plant.
Transplant the hibiscus into a bigger pot when it becomes large enough. Continue to pot the plant in a container just slightly larger than the root ball. Add a taller stake when needed and continue to support the stem until it is strong enough to stand on its own without bending.
Prune the plant to shape the top into a round, even form as it grows. Prune just above a node, or sprout, with clean shears.