Fertilizer and Watering

Question

What is the frequency of watering and fertilizing crape myrtles here in San Antonio, Texas?

Answer 1

They generally do not need fertilizer, but it will not hurt to give it some if you want. If you do fertilize, use a balanced fertilizer (10-10-10). Generally, trees need at least 2-3 inches of water weekly (including rainfall), so I would water one or two times a week for at least 15-20 minutes (longer if it has been very hot and dry). If your tree is newly planted, this article will help: https://www.gardeningknowhow.com/ornamental/trees/tgen/watering-newly-planted-tree.htm

Other than making sure it receives plenty of water, you may want to add a good layer of mulch to help retain moisture and moderate soil temps, especially during hot, dry spells.