Toxic Plant Known to be toxic - Toxic to mammals if ingested.
Image of Rudbeckia laciniata
image of Flowering plant
Rudbeckia laciniata
Cut-leaved coneflower
Rudbeckie laciniée

Obsolete Names

  • green-headed coneflower
  • tall coneflower
  • rudbeckia lacinié
No seeds available for this plant.

We are not accepting seeds for this plant at the moment.

Bloom colour: Yellow Bloom period: July - September
Max Height: 7.0 feet
Max Width: 4.0 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Full shade Less than 2 or 3 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan : Perennial
Gardener Experience:
plant germinate easy Easy to germinate
Landscape uses:
rain garden Suitable for rain gardens
shoreline_rehab Suitable for shoreline rehabilitation
container suitable Suitable for container garden
school garden Suitable for school gardens
woodland garden Suitable for woodland gardens
Ecological Benefits:
Pollinator garden Supports pollinators
bee host Bee host
keystones species Keystone species
Tolerates:
Deer Resistant Deer resistant
rabbit resistant Rabbit resistant
sand Tolerant Tolerates sandy conditions
juglone Tolerant Tolerates juglone conditions
transplantation Tolerant Tolerates transplantation

Plant Distribution

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Rudbeckia laciniata
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Ecozone-Mixed Wood Plain
  • Ecozone-Boreal Shield
  • Ecozone-Boreal_Plains
  • Atlantic_Maritime
  • Ecozone-Prairies

Butterflies Supported by Rudbeckia laciniata

No butterfly data available for this plant.

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

Complementary Plants Plants that grow in similar conditions, that bloom at the same time.

  • No complementary plants found.

Sowing Information

  • Sowing depth: Sow just below surface
  • Sow before March
  • Stratification duration: 30 days
  • Self-seeding

Harvesting Information

  • 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
  • On Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity