The Site Gardener

Plant Library

Explore 4,545 plants, with photos and growing details.

Back to Tools

← Back to plant results

Coreopsis 'Cosmic Eye' PPAF

Cosmic Eye Tickseed

Coreopsis ‘Cosmic Eye’ is a compact, long-blooming tickseed known for its golden-yellow flowers marked with a bold burgundy-red eye. Cheery and dependable, it flowers continuously from early summer into fall and thrives in hot, sunny conditions with minimal care.


Plant Profile
Type: Herbaceous perennial

Mature Size:



Width: 14–18 in.



Height: 16–20 in.



Bloom:



Daisy-like flowers with bright yellow petals and a deep red central eye



Long bloom season: early summer through fall



Excellent reblooming with deadheading



Foliage:



Fine-textured, medium green leaves



Forms a tidy, mounded clump



Zones: 5a–9b
Light: Full sun
Soil: Well-drained soils; tolerant of poor, sandy, or rocky soils
Water: Low to moderate; drought tolerant once established


Features & Uses


Form: Compact, mounded habit



Ideal for perennial borders, pollinator gardens, mass plantings, and containers



Excellent heat and drought tolerance



Strong pollinator appeal (bees, butterflies)



Deer resistant and low maintenance




Care Notes


Deadhead spent blooms to extend flowering



Cut back in late fall or early spring



Avoid overly rich soils, which can reduce flowering




 

Plant type
Perennial
Height
12-15''
Width
12"-15"
Hardiness zones
5–9
Sunlight
Full Sun
Growth rate
Moderate
Bloom time
Early Fall, Early Summer, Late Summer, Mid Summer
Flower color
Yellow
Attracts
Butterflies
Soil
Loamy
Landscape use
Container, Mass Planting
Shape
Clump
Fragrant
Yes
Deer resistant
Yes
Drought tolerant
No