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Flowers are light indigo, foliage is deciduous to semi-deciduous depending on the hardiness zone where it is grown. Prune hard in late fall for more flowers and a more compact form. A cross between a C. coeruleus (Mexico) and C. americanus (Eastern U.S.). Recipient of the 1993 Award of Garden Merit.
Mature size: 8 ft T x WMinimum temperature: 0° F