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Large-flower Tickseed

Coreopsis grandiflora

Last reviewed: June 2026

Large-flower Tickseed (Coreopsis grandiflora)
Photo: Alois Lunzer (1840-?) / Wikimedia Commons (Public domain)

Large-flower Tickseed (Coreopsis grandiflora) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org, last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

full sun

Water

low

Size

12"–24" H × 12"–18" W

Bloom

Jun, Jul, Aug, Sep

Native to

AL, AR, CT, FL and 27 more states

Pollinators

bees, butterflies

Large-flower tickseed produces bright yellow daisy-like flowers from June through September on compact, bushy plants. This drought-tolerant native perennial forms neat clumps that work well in sunny borders and naturalized areas. The cheerful blooms provide long-lasting color with minimal care requirements.

In an HOA neighborhood

Large-flower Tickseed is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.

Works well in: front yard, foundation, street edge, mid zone.

  • May self-seed if not deadheaded regularly

Wildlife value

The abundant flowers attract numerous bees and butterflies throughout the growing season. Seeds provide food for goldfinches and other small birds in fall.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Does Large-flower Tickseed fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.