Answer: Chitalpa is the offspring of Catalpa bignonioides and Chilopsis linearis. Chitalpa gets its strong constitution from the desert adapted Chilopsis, and its large flower clusters from Catalpa. These trees are hardy under the most unfavorable conditions and should grow well in clay soils, in heat and wind. Be sure the soil drains well, and water regularly during its first year in the garden as it is establishing a root system. Enjoy!
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