Centranthus ruber
red valerian
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
- Position: full sun
- Soil: well-drained, neutral to alkaline
- Rate of growth: fast-growing
- Flowering period: July to October
- Hardiness: fully hardy
Dense clusters of reddish-pink flowers appear from July to October on tall, fleshy stems with glaucous leaves. Red valerian is long flowering and easy to grow. It's ideal for a sunny wildflower or seaside garden with poor but well-drained soil, or for growing between the cracks in walls. It self-seeds freely and prefers a chalky or alkaline soil. - Garden care: Deadhead regularly throughout the summer to prolong flowering. In autumn cut the plant back down to the ground and compost the dead stems.