The fragrant, arching clusters of Butterfly Bush are irresistible to hummingbirds and butterflies. Really a shrub, plants are best treated like perennials and pruned back hard each spring, to maintain a compact, bushy habit. The HUMDINGER® series blooms a few weeks earlier and is short in stature. This selection features masses of long wands of lavender flowers over grey-green foliage. Introduced by Walters Gardens, Inc., Zeeland, Michigan. USPP#28221: unlicensed propagation prohibited.