Improve the quality and length of the trunk by pruning excess branches as needed, using an electric tree trimmer. The tree can easily grow to 100 feet tall, with 70-foot wide branches, so a strong central trunk is important.
Prune to control the shape of the tree by removing selected limbs with a chainsaw or trimmer. These trees are vigorous and fast growers, so don't hesitate to prune severely if necessary. The tree can be grown indoors or in a pot when heavily pruned to prevent growth and avoid root restriction.
Lop away dead or excess branches by hand or with a trimmer to encourage new growth, particularly during winter when much of the foliage and wood dies away. Trees lose all their foliage in winter. They are leafless for two months until they enter a new flush of growth that re-establishes a full crown. Much of the wood dies off as well. By removing dead wood, you improve regrowth.