Image of Coreopsis tripteris
Source: Frank Mayfield
image of Flowering plant
Coreopsis tripteris
Tall Tickseed
Coréopsis trifoliolé

Obsolete Names

tall coreopsis
coréopsis trifoliolée
Seeds available at table Full sun
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:
Full sun More than 6 hours of direct sun a day
Soil conditions:
Moisture dry Tolerates dry soil condition
Moisture medium Tolerates medium soil condition
Lifespan: Perennial plants that will that come back year after year
Gardener Experience:
does not spread Does not spread uncontrollably
plant germinate easy Easy to germinate
plant self seeding Self-seeding
Landscape uses:
school garden Suitable for school gardens
foot traffic tolerant Tolerates foot traffic
Ecological Benefits:
bee host Bee host
Tolerates:
Deer Resistant Deer resistant
rabbit resistant Rabbit resistant
foot traffic Tolerant Tolerates foot traffic
limestone Tolerant Tolerates limestone conditions
juglone Tolerant Tolerates juglone conditions
transplantation Tolerant Tolerates transplantation
Special Features and Considerations:
plant endangered This plant is endangered
septic tank safe This plant is septic tank safe

Plant Location

Native to Ottawa region: No

Distribution according to VASCAN

Distribution: Coreopsis tripteris
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Coreopsis tripteris

No butterfly data available for this plant.

Specialized Bees Supported by Coreopsis tripteris

  • Megachile inimica
  • Megachile pugnata
  • Melissodes subillatus
  • Melissodes trinodis
Plants that grow in similar conditions, that bloom at the same time.

Complementary Plants

Substitute For Non-Native Plants

  • NA (Coreopsis cultivars)
  • Hemerocallis (Daylily)
  • Gaillardia (Blanket Flower)

Sowing Information

Download Sowing Label (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: October
  • Harvesting indicator: Seeds easily fall off when you gently pull them off
  • Harvesting mean: Shake seed head in paper bag
  • Seed viability test: No test needed before donating
  • Packaging measure: 1 rounded 1/4 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

Not known to be toxic to mammals if ingested.