A deciduous, herbaceous perennial that reaches to approximately 1.60m in height when in flower. It forms a mound of dark green, deeply lobed leaves and strong, dense stems of deep purple flowers with striking white centres, in early summer
1.5-2.5 metres
0.5-1 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Grow in fertile, well-drained soil in full sun. Shelter from strong winds and provide support (see staking perennials). Divide every 2-5 years to maintain vigour. See staking perennials and delphinium cultivation for further advice
Propagate by division or by basal softwood cuttings in spring. As this plant is protected by Plant Breeders' Rights, any propagation should be for personal rather than commercial use
Deadhead main stem after flowering to encourage side shoots to flower. Cut back to ground level in autumn
May be susceptible to aphids, slugs, snails, leaf miners and caterpillars, including swift moth caterpillar
May be susceptible to delphinium black blotch, Powdery mildews, grey moulds, crown rot (on mature plants) and occasionally cucumber mosaic virus