Butterfly Bush 'Black Knight'
B. davidii are shrubs with vigorous growth each spring and summer. The long arching stems bear fragrant small flowers in dense terminal cone-shaped clusters that attract butterflies. 'Black Knight' has deep violet flower clusters from July to October. The lance-shaped leaves are dark green with white, felted undersides.
Buddleja davidii 'Black Knight'
Leaf length : 4-12"
Leaf shape : Lance-shaped
Leaf color : Dark green with white felted undersides
Flower fragrance : Yes
Flower shape : Cone-shaped clusters
Flower color : Purple
Foliage growth cycle : Semi-deciduous
Average size maturity width : 8-15 ft.
Average size maturity height : 10-15 ft.
Growth rate : Vigorous
USDA Zone : -10 to -5 F( Z6a)
Sunset zone : 2-24
Water requirements : Regular
Light exposure : Partial Sun
Butterflies : Yes
Attractive bark : Yes