A rich dark fast-growing shrub, Buddleja davidii Black Knight is loaded with intense deep-purple, scented flower spikes from summer to autumn. Butterflies can't resist them, birds and bees will pay a visit to feed on the nectar too! Plant this beautiful shrub in cottage gardens, wildlife gardens, and in mixed beds. Prune hard after flowering in frost-free areas or in spring in cold ones to maintain compact growth and heavier flowering. Fertilise in spring using a slow-release fertiliser, and give an extra boost during the summer heat using eco-seaweed.
Soil: Well-drained soil.
Conditions: Plant in a full sun to partly shaded position in the garden. Frost, drought and coastal tolerant.
Size: Height 1-3m x width 1-1.5m
Soil: Well-drained soil.
Conditions: Plant in a full sun to partly shaded position in the garden. Frost, drought and coastal tolerant.
Size: Height 1-3m x width 1-1.5m