Botanical: Buddleia davidii 'Royal Red'
Common: Butterfly Bush
General Characteristics: This butterfly bush cultivar is a deciduous shrub with an arching, spreading habit which typically grows 6-8' tall if not cut back in late winter and 4-5' tall if cut back. Easily grown in average, medium, well-drained soil in full sun. Becomes weedy and sparse with diminished flowering performance if not grown in full sun. Does poorly in wet conditions. In USDA Zone 5, this plant will often die to the ground in winter and therefore is often grown therein in the manner of an herbaceous perennial. Even if plants do not die to the ground in winter, they usually grow more vigorously, produce superior flowers and maintain a better shape if cut to the ground in late winter each year. Removal of spent flower spikes during the growing season will encourage additional bloom, but consider leaving final blooms in place to facilitate reseeding.
Tip: Cut faded flowers off a butterfly bush regularly to keep it blooming throughout the summer. Butterfly bushes prefer full sun (they must receive eight or more hours of sun a day to thrive).
Use: Provides valuable summer and early fall flowers when few other shrubs are in bloom. Best grown in massed plantings in borders, cottage gardens rose gardens or butterfly gardens. Usually does not make a good single specimen shrub.