How to grow Centranthus ruber (Red Valerian)

Position: Full sun, partial shade

Foliage: Perennial

Soil and site: Well-drained – almost any soil except waterlogged

Flowering time: Late Spring to late Autumn

Growth rate: Fast growing

Ultimate height and spread: Height to 80cm, spread to 45cm

Hardiness: Fully hardy once established

Aftercare: In early Spring cut back the previous years’ growth to ground level