Known to be toxic - Toxic to mammals if ingested.
Source: GFDL
Rudbeckia laciniata
Cut-leaved Coneflower
Rudbeckie laciniée
Obsolete Names
green-headed coneflower
tall coneflower
rudbeckia lacinié
Seeds available at table Shade
We currently accept seeds for this plant
Bloom colour: Yellow
Bloom period: Jul - Sep
Max Height: 7.0 feet
Max Width: 4.0 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
Less than 2 or 3 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
Less than 2 or 3 hours of direct sun a day
Tolerates medium soil condition
Lifespan:
Perennial
plants that will that come back year after year
Gardener Experience:
Easy to germinate
Self-seeding
Easy to germinate
Self-seeding
Landscape uses:
Suitable for rain gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for school gardens
Suitable for woodland gardens
Suitable for rain gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for school gardens
Suitable for woodland gardens
Ecological Benefits:
Supports pollinators
Bee host
Keystone species
Supports pollinators
Bee host
Keystone species
Tolerates:
Deer resistant
Rabbit resistant
Tolerates sandy conditions
Tolerates juglone conditions
Tolerates transplantation
Deer resistant
Rabbit resistant
Tolerates sandy conditions
Tolerates juglone conditions
Tolerates transplantation
Special Features and Considerations:
Plant Location
Native to Ottawa region: Yes
Thrives in Ecozones
- Atlantic Maritime
- Prairies
- Boreal Shield
- Mixed Wood Plains
Ecological Benefits
Butterflies Supported by Rudbeckia laciniata
No butterfly data available for this plant.
Specialized Bees Supported by Rudbeckia laciniata
- Andrena aliciae
- Andrena rudbeckiae
- Complexe Colletes americanus
- Complexe Colletes compactus
- Megachile inimica
- Megachile pugnata
- Melissodes agilis
- Melissodes illatus
- Melissodes subillatus
- Melissodes trinodis
- Protandrena andrenoides
Plants that grow in similar conditions, that bloom at the same time.
Complementary Plants
- Agastache scrophulariifolia
Purple Giant Hyssop
Agastache à feuilles de scrofulaire - Amorpha canescens
Leadplant
Faux-indigo blanchissant - Anemone cylindrica
Long-headed Anemone
Anémone cylindrique - Elymus canadensis
Canada Wild Rye
Élyme du Canada - Oenothera gaura
Biennial Gaura
Gaura bisannuel
Substitute For Non-Native Plants
- Oenothera (Non-Native Primrose)
- Oenothera biennis (Evening Primrose Cultivars)
- NA (Black Eyed Susan's Cultivars)
- Rudbeckia Triloba (Brown Eyed Susan's)
- Echinacea (Coneflowers)
- Leucanthemum (Shasta Daisy)
- Helianthus).1 (Non-Native Sunflower)
- NA (Non-Native False Sunflower)
Sowing Information
Download Sowing Label (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 easily fall off when you gently pull them off
- Harvesting mean: Cut top edge then shake seeds off in bag or container with rock or equivalent
- 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, shaking seeds to move them once in a while to prevent molding
- At least one 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
Toxic to mammals if ingested.