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A short annual native to California which has spread into British Columbia. Requires very little moisture once established, but needs sufficient water during germination and early growth. Flower color is pink and red and is made up of four fan-shaped petals. Prefers full sun in well drained soils. The most flamboyant western native wildflower.

Average planting success with this species: 70%
Height: 1-1 1/2 feet
Germination: 25-35 days
Optimum soil temperature for germination: 60F-70F
Sowing depth: 1/16"
Blooming period: May-July
Average seeds per pound: 1,790,000
Seeds/Pkt: 2,750
Seeding rate: 2 lbs. per acre
1 oz Covers: 1,361 sq. ft.
Suggested use: Roadsides, mixtures, floral gardens.
Miscellaneous: Prolific bloomer throughout summer. Named for its discoverer Captain William Clark of the Lewis and Clark Expedition. Does not transplant well.