The Black Knight Butterfly Bush is medium sized deciduous shrub with pale foliage that can be evergreen in warmer climates (zone 7-9). Summer to Fall Black knight will produce lovely violet-purple conical bloom clusters which are great for attracting butterflies and hummingbirds! After bloom clusters have flowered out, trim the blooms off to encourage additional flowering.
Spacing Your Black Knight Butterfly Bush
For a seamless planting, plant your Black Knight Butterfly Bush 4 feet apart. For space between plantings, plant them 5-6+ feet apart.