More info about our plant sizes.
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C. x laxus is the offspring of dwarf, hairy-leaved, mounding C. hirsutus and the upright, hardier C. populifolius, both with multitudes of 2-inch white, yellow-centered flowers during summer, and dense enough foliage to suppress weeds. 3' T & 5' W, vigorous, and evergreen.
Minimum temperature: 10° F