Tips for Buddleja davidii Black Knight from Gardening Express: Position: full sun Soil: fertile, well-drained soil Rate of growth: fast-growing Flowering period: July to September Flower colour: dark purple Other features: autumn colour, flowers attractive to butterflies Hardiness: fully hardy Garden care: Prune back hard in March, removing all of the previous year's growth to three or four buds.
Gardening Tips & Plant Care Advice Garden Design Ideas
Buddleja davidii 'Rêve de Papillon' Butterfly bush, Buddleja davidii, Buddlea davidii, Buddleia davidii, Butterfly friendly plant. Click image to learn more and to add to your own plants list. Buddleja davidii 'Minpap' Variety or cultivar: 'Rêve de Papillon' _ 'Rêve de Papillon' is a broad, upright, bushy, deciduous shrub with arching branches, lance-shaped, pointed, mid-to grey-green leaves and long panicles of deep pink flowers from midsummer into autumn.