Source: Donna Bos
Plant Names
Ratibida pinnata
Grey-headed Prairie Coneflower
Ratibida à feuilles pennées
Synonyms
pinnate prairie coneflower
Plant Characteristics
Bloom Colour: Yellow
Bloom Period: Jun - Aug
Max Height: 5.0 feet
Max Width: 2.0 feet (spreads by rhizome)
Light Condition:
More than 6 hours of direct sun a day
More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Tolerates medium soil condition
More than 6 hours of direct sun a day
More than 2 or 3 hours but less than 6 hours of direct sun a day
Tolerates medium soil condition
Lifespan:
Perennial
plants that will that come back year after year
Gardener Experience:
Spreads by rhizome
Easy to germinate
Self-seeding
Spreads by rhizome
Easy to germinate
Self-seeding
Landscape Uses:
Suitable for rock gardens
Suitable for rain gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for school gardens
Tolerates boulevard garden conditions
Suitable for rock gardens
Suitable for rain gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for school gardens
Tolerates boulevard garden conditions
Ecological Benefits:
Supports birds
Supports pollinators
Bee host
Supports birds
Supports pollinators
Bee host
Tolerates:
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates transplantation
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates transplantation
Special Features and Considerations:
This plant is endangered
This plant is endangered
Seed and plant distribution status
No seeds available for this plant.
We are not accepting seeds for this plant at the moment.
Plant Location
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Canadensis
Thrives in Ecozones
- Mixed Wood Plains
Ecological Benefits
Butterflies Supported by Ratibida pinnata
No butterfly data available for this plant.
Specialized Bees Supported by Ratibida pinnata
- Andrena rudbeckiae
- Melissodes agilis
- Melissodes trinodis
Complementary Plants
- Chamaenerion angustifolium
Fireweed
Épilobe à feuilles étroites - Elymus virginicus
Virginia Wild Rye
Élyme de Virginie - Eupatorium altissimum
Tall Boneset
Eupatoire élevée - Vernonia missurica
Missouri Ironweed
Vernonie du Missouri
Substitute For Non-Native Plants
- Helianthus (Non-Native Sunflower)
- NA (Black Eyed Susan's Cultivars)
- Rudbeckia Triloba (Brown Eyed Susan's)
- NA (Coreopsis cultivars)
- Gaillardia (Blanket Flower)
- NA (Non-native False Sunflower)
Sowing Information
Download Seed Envelope Labels (PDF)
- Sowing depth: Sow just below surface
- Sow by March
- Stratification duration: 30 days
- Self-seeding
Harvesting and Seed Sharing
- Harvest start month: September
- Harvesting indicator:
- Seeds are dark and dry, and easily fall off when you gently pull them off
- Harvesting:
- Use hand to detach from main stem
- Seed viability test:
- No test needed before donating
- Packaging measure: 1 rounded 1/8 teaspoon
- Seed storage:
- Air dry in paper bag or open container, for a few days until crisp
- Shake seeds to move them once in a while to prevent molding
- Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
- Remove non-seed material
- No harvesting video available at this time.
Toxicity Notes
Inadequate information on toxicity found.