A clump-forming grass for borders. The dazzling, upright, steely blue swards are particularly striking against hot shades of orange. The foliage changes to soft yellow in autumn, often appearing alongside purple-green flower spikelets.
Sow February to June or September to October in pots or trays of moist seed compost and cover with a very fine sprinkling of compost or vermiculite. Place in a propagator or warm place, and keep at a constant temperature of between 15-20C (59-68F). After sowing, do not exclude light as this helps germination. Keep the surface of the compost moist but not waterlogged; germination can take 1-6 months.
When large enough to handle, transplant seedlings into 7.5cm (3 inch)pots or trays. Gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost, 75cm (30 inches)apart.
For best results, provide a fertile, well-drained soil in full sun.