Answer: Bauhinia, the Hong Kong Orchid Tree, has an umbrellalike growth habit and reaches about 20' high and wide. The flowers bloom from late fall to spring and are shaped somewhat like orchids. The gray-green leaves tend to drop off around bloom time, but the tree does not lose all of its foliage at one time. Instead, it retains some older leaves, develops new leaves and flowers, all at the same time. Obviously, with leaves and flower petals dropping from November through April, there will be litter associated with this tree. Aside from raking the leaves every week or two, I think the tree would be a lovely addition to your courtyard.
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