Tickseed (Coreopsis grandiflora)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Perennial

Tickseed
Coreopsis grandiflora

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Tickseed Coreopsis 'Early Sunrise'
Tickseed Coreopsis 'Early Sunrise'
 
Features
Golden yellow flowers on round plants with narrow green leaves. Almost season long bloom potential 
 
Culture
Well-drained to dry soil in full sun location 
 
Cultivars

'Baby Sun' 12-18 inches tall single yellow flowers with red markings

'Sunray' 12-18 inches tall double yellow flowers

'Rising Sun' 12-18 inches tall double yellow flowers with mahogany centers

 
 
Mature Height
1-2 Feet
 
Size
Medium
 
 
USDA Hardiness Zone
5 - 9 
 
Bloom Color
Yellow
 
 
Bloom Season
June - August
 
Soil Conditions
Dry
 
 
Exposure/Light Requirements
Full Sun
 
 
Foliage Color
Green
 
 
Pests and Problems

Environmental Damage

Fungal Disease

Insect Damage

Phytoplasma Disease


Additional pests and problems that may affect this plant:

Aster yellows, alternaria leaf spot, powdery mildew, cercospora leaf spot, aphids
 
Additional Notes
With deadheading, plant can provide bloom almost all season. Short lived if not given good drainage. Best to divide every 3 years to maintain vigor.

 

 
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