Plant and care for a bottlebrush tree by choosing a location with well-drained soil and full sun, mulching the plant, watering it regularly and fertilizing the tree once a year. Trim the plant only after it blooms in the spring.
Plant a bottlebrush by soaking the roots with water prior to planting. Meanwhile, choose a location that has sandy, well-drained soil. Either amend the soil with sand to improve the drainage, or plant the bottlebrush in a raised garden bed.
Make sure that the plant has access to plenty of direct sunlight. Dig a hole large enough to fit the root ball with room to spare. Keep the soil light by breaking up dirt clumps and scraping the walls of the hole. Remove the bottlebrush from the container, and gently untangle the roots. Fill in the hole with soil, pressing it lightly down.
Mulch the plant immediately after planting to keep the soil moist and free of weeds. Water the plant immediately as well, and continue to water it with 1 inch of water per week for at least the first year. After the first year, decrease watering. Every spring, feed the plant a 10-10-10 fertilizer. In the fall, prune away any awkward or overgrown branches.