Black Knight Butterfly Bush (well branched 1-2ft in full gallon pots) Deep purple blooms in the summer!
This butterfly bush cultivar has nearly black flowers. It can reach up to 6-8ft tall if not cut back in late winter and 4-5ft tall if cut back. Long terminal clusters of very dark purple flowers, which bloom from June to late fall, can reach up to ten inches long! Flowers are fragrant and attract butterflies.