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Ships within 48 hours · Estimated delivery Sep 3 - Sep 8
Easy to use
Clump-forming deep black leaves grow below tall stems topped with small bell-shaped red flowers with deep burgundy calyxes
but can always be balanced by a couple of finer or coarser plants for an effective composition
Spread: 15m/60'
To optimize colour
Butterfly Bush 'Black Knight' Asclepias tuberosa Easy to useBlack Knight Butterfly Bush Bold colour. Endless butterflies. A garden classic for late summer colour, Black Knight Butterfly Bush produces long spikes of rich, velvety deep purple flowers from midsummer right into fall. Its sweet fragrance attracts butterflies, bees, and hummingbirds, making it one of the best shrubs for creating a lively pollinator garden. Why you'll love it: Deep purple flower spikes from mid summer to frost A magnet for
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