Answer: The Hong Kong Orchid tree (Bauhinia) is partially deciduous, meaning it will lose some, but not all of its leaves, which will be replaced by healthy new foliage. It may be that your tree is shedding some of its older leaves and will be growing new ones in a few short weeks. All trees and shrubs appreciate a deep soaking once each week rather than frequent but shallow watering (such as you might give your lawn). Try setting a sprinkler directly beneath your tree and allowing the water to run for about 15 minutes. This will concentrate the moisture directly over the root mass and allow it to percolate down and wet the entire root system. Watering in this way should improve your tree's appearance and ensure it remains healthy for many years to come.
Best wishes with your landscape!
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