'Black Knight' Deep Purple Butterfly Bush
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Buddleia davidii 'Black Knight'
Deep black/purple spears reach 8-10" in length, one of the most popular Butterfly Bush cultivars, bright green foliage.
Plant Type(s): Flowering Shrub
Spring/Summer Care: Light summer pruning and nutrition extends bloom to later fall. Otherwise, prune anytime.
Autumn/Winter Care: Shear back in late autumn if you wish to keep size under control.
Fertilizer Needs: If you soils are high in organic matter, you may not need supplimental fertilizer on Buddleia. Otherwise, apply a balanced fertilizer in late spring.