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Ratibida columnaris (Asteraceae)
A robust, drought tolerant annual to perennial variety native to the mid-west and has naturalized throughout North America. The characteristic black, cone-shaped heads are surrounded by drooping, fire-red ray flowers with a splash of yellow accent. At maturity the upright branching stems may become woody. Prefers full sun in well drained soil. Outstanding in hot-humid climates.
Average planting success with this species: 70%
Height: 2-3 feet
Germination: 20-40 days
Optimum soil temperature for germination: 68F-75F
Sowing depth: 1/16"
Blooming period: June-September
Average seeds per pound: 1,230,000
Seeding rate: 1 lb. per acre
1 oz Covers: 2,723 sq. ft.
Suggested use: Prairies, roadsides, waste places, slopes.
Miscellaneous: An excellent variety for cut flower arrangements lasting 5 to 10 days. Flower resembles a colorful Mexican sombrero, hence the name, Mexican Hat.