Winner of the RHS Plant of the Centenary at Chelsea Flower Show 2013
Large violet-blue flowers with white centres appear throughout the summer above the mounds of slightly-marbled, deep green foliage. Perfect for underplanting roses, or filling a few gaps in the front of a border, it copes well in full sun or partial shade.
- Position: full sun or partial shade
- Soil: fertile, well-drained soil
- Rate of growth: fast-growing. Height 60cm Spread 80cm
- Flowering period: June to September
Hardiness: fully hardy