Buddleja dav. Black Knight

Deep purple-blue, almost black, flowers in elongated clusters on arching branches to 10 feet tall if not cut back, and half that size if cut back. The blooms come from early summer to first frost. The foliage is willow-like and greyish green.

Full sun or partial shade.

All soil types.

Well drained or moist but well-drained soil.

Maximum height 2.5-4m. Maximum spread 2.5 – 4m.

Time to full growth 5-10years.