15" tall x 18" wide. Nepeta faassenii 'Select Blue' (Catmint) was originally chosen for introduction because of its noticeably bluer flowers than is typical of most Nepeta. 'Select Blue' Catmint has become a cornerstone in many xeriscapes because of its cold hardiness, ease-of-cultivation, longevity and extended period of bloom. The first flush of flower comes in late spring. When deadheaded promptly, you will enjoy a second flush of blooms in late summer. Out of flower, the neat mound of foliage has a pleasing fragrance, texture, and gray-green color. Impervious to browsing animals, it grows easily in most soil types including clay. Is a sterile plant that will not reseed and make a weed of itself like other more common catmint. Cut back just above ground-level (about 3") in mid-spring. Shear off faded flowers in June to re-bloom. (Cutting propagated.)