In my garden, a single plant has re-seeded to create a patch 3 feet in diameter. In the nursery, propagation is by seeds, cuttings or division. Plants can be divided after the first frost. Varieties and cultivars Bonita Pink is a new pink dwarf selection from Color Spot Nurseries Southwest Division in San Antonio. It blooms profusely in sun or part shade from spring to frost.
Plants are very heat tolerant and adapt to many soil types.
Katie' first appears in May and blooms continuously until first frost in mid-November. Blue Shade' is a low-growing form popular in South Texas as a groundcover. It seldom grows higher than 10 inches and does well in partially shaded locations.