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For successful seedlings,
see the growing notes at the bottom of the page!
Grey-headed prairie coneflower (Ratibida pinnata) is a graceful native perennial from Ontario, known for its long, velvety stems and delicate, airy presence in wildflower gardens. With its blue-green, deeply lobed foliage and soft yellow flower heads crowned by a distinctive cone, this plant adds elegance to any garden and emits a subtle anise fragrance, attracting various bee species. A superb alternative to black-eyed Susan, the grey-headed prairie coneflower thrives in naturalized landscapes, blooming from May to October and drawing in numerous pollinators.
Medicinal and Culinary Uses
This plant has astringent, tonic, and mildly analgesic properties. A decoction made from it is sometimes used to soothe minor skin conditions and relieve mild aches. Though its medicinal use is less common today, it remains valued for its ornamental and ecological benefits.
Ecological Roles
The grey-headed prairie coneflower is highly beneficial for supporting local biodiversity. Its fragrant blooms attract many bee species, and it serves as a host plant for various butterflies, including the silvery checkerspot (Chlosyne nycteis), the common eupithecia moth (Eupithecia miserulata), and the wavy-lined emerald moth (Synchlora aerata). Incorporating this plant into wildflower gardens helps bolster pollinator and butterfly populations, supporting local ecosystems.
Grey-headed prairie coneflower seeds require cold stratification to ensure germination. See the cultivation notes below for more details.
Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.
Sowing and Growing
Technical Details
Seeds per packet: 100
Family: Asteraceae
Scientific name: Ratibida pinnata
Life cycle: Perennial
Hardiness zone: 3
Soil type: Sandy to silty
Soil moisture level: Dry to medium
Soil - additional attributes: Well-drained
Light: Sun, partial shade
Blooming: May to October
Spacing: 60 cm
Height: 150 cm
Deer resistance: High
Stratification: 60 days
Scarification: No
Germination time: 7 to 21 days
Sowing depth: 3 mm