Threadleaf Coreopsis (Coreopsis verticillata)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers


Threadleaf Coreopsis
Coreopsis verticillata

Coreopsis 'Golden Shower'
Coreopsis 'Golden Shower'
Yellow flowers on rounded plants with fine, feathery foliage. Excellent plant for almost continuous summer flowering.  
Prefers well-drained soils in a sun location. 

'Moonbeam' 12-18 inches tall, soft yellow flowers

'Golden Showers' 2-3 feet tall, dark yellow flowers

'Zagred' 12-18 inches tall, small yellow flowers

'Heavens Gate' 18-24 inches tall, large pink flowers with red centers

'Rosea' 12-15 inches tall, pink flowers, vigorous spreading plant

Mature Height
2-3 Feet
USDA Hardiness Zone
3 - 9 
Bloom Color
Bloom Season
June - October
Soil Conditions
Moist, Well-Drained
Exposure/Light Requirements
Full Sun
Foliage Color
Pests and Problems

Environmental Damage

Fungal Disease

Insect Damage

Additional pests and problems that may affect this plant:

Powdery mildew, alternaria leaf spot, cecospora leaf spot, aphids
Additional Notes
Long living perennial. Can spread by underground rhizomes. Drought tolerant. Cut back after their first flush of flowers for an autumn flush of flowers. Don't over-fertilize as it leads to soft, floppy plants.


Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic