Threadleaf Coreopsis
- Botanical Name
- Coreopsis verticillata
- Min Zone
- 3
- Max Zone
- 9
- Height
- 2 to 3 feet
- Width
- 2 feet
- Flowers
- Summer: yellow
- Light
- Full sun
- Soil
- Well-drained to dry
- Planting & Care
- Space plants 12 to 20 inches apart
- Deadhead (shear) in August for fall bloom
- Divide every 2 to 3 years for vigor
- Problems
- None serious, winter hardiness in poorly drained soils
- Varieties
- Moonbeam - Perennial Plant of the Year 1992, 18 to 24 inches, creamy yellow flowers, may have some hardiness concerns
- Zagreb - bright yellow, 12 to 18 inches, hardier
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