SITE

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