Native Region: Canada, northwestern United States
Zone Range: 02-08
Preferred Climate: temperate
Harvest Date: Sunday 02 September, 2012
Seed count: 30-40
This erect, clump-forming perennial is grown for its daisy-like, lavender-blue flowers with yellow centers. The flowerheads are 1-1/2 inches across. Its basal leaves are inversely lance-shaped, while the stem leaves are lance-shaped to ovate. Height and spread are 24 inches. Grow this plant in a herbaceous or mixed border, or in a rock garden.
Sow seed in containers in a cold frame in mid- or late spring. Germination usually takes about 3 weeks at temperatures near 13 degrees Celsius (55 degrees F). Grow in fertile, well-drained soil in full sun, with some mid-day shade. Do not allow to dry out in summer. Deadhead to encourage further flowering. Cut back to ground level in autumn to retain a neat habit. Divide every three years in late spring, discarding the woody crowns. For maximum freshness, please keep seed refrigerated in its original packaging until it is time to plant.