Plains Coreopsis plant profile
Coreopsis tinctoria
An annual flower for full sun.
Last updated .
When to plant
When to plant Plains Coreopsis
Plains coreopsis is a self-seeding annual that blooms from summer through frost; NC State notes it sows readily onto open, bare ground and does best crowded in mass plantings. The page gives no explicit sowing date, so a spring band is approximate.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Plains Coreopsis in my garden calendarShows the source-backed planting season, not frost-adjusted dates.
Growing conditions
- Sun
- Full sun
- Soil pH
- 6 to 8
- Lifecycle
- Annual
- Hardiness
- Zones 2 to 11Find my hardiness zone
Common problems
Watch for these
Also watch for: aggressive reseeding, poor drainage.
Next steps
Continue with Plains Coreopsis
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Coreopsis tinctoria (Plains Coreopsis, Golden Tickseed)
NC State Extension, North Carolina Extension Gardener Plant Toolbox. Supports general reference. Checked 2026-06-18.