Threadleaf Coreopsis plant profile
Coreopsis verticillata
A perennial flower for full sun.
Last updated .
When to plant
When to plant Threadleaf Coreopsis
Threadleaf coreopsis is a clump-forming native perennial with airy, thread-like foliage and a long run of yellow daisy flowers from late spring into summer (NC State: May to July). Plant or divide in spring or fall in well-drained, lean soil in full sun to partial shade; shear after blooming to encourage fall rebloom.
The calendar shows this cited seasonal window as an approximate band. It does not convert the season into frost-adjusted dates.
Open Threadleaf 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
- Perennial
- Hardiness
- Zones 3a to 9bFind my hardiness zone
Next steps
Continue with Threadleaf Coreopsis
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Coreopsis verticillata (Threadleaf Coreopsis, Whorled Tickseed)
North Carolina Extension Gardener Plant Toolbox (NC State Extension). Supports general reference. Checked 2026-06-18.