- Position: full sun or partial shade
- Soil: moist, but well-drained soil
- Rate of growth: fast-growing
- Flowering period: July to August
- Flower colour: violet-blue
- Hardiness: fully hardy
Spreading by underground rhizomes, this pretty perennial will form a neat clump of foliage in spring, which starts to die back as the upright flower stems emerge in midsummer. The violet-blue flowers resemble nodding bells that form in loose trusses at the top of the wiry stems. Elegant and easy to grow, it is a native of dry, grassy slopes throughout Europe and the UK, so it looks right at home in naturalised planting schemes.
- Garden care: Surface-sow onto good quality compost, which is kept moist but not wet and keep under glass (or in a polythene bag) until they germinate. When they are large enough to handle transplant into small pots and grow on before planting out in a sunny position. Protect the tender foliage from slug-damage using environmentally friendly slug pellets or beer traps. During the growing season water freely and apply a balanced liquid fertiliser each month.
- Sow: March-May or September-November
- Flowering: July-August
- Approximate quantity: 1000 seeds