The Site Gardener

Plant Library

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

Back to Tools

← Back to plant results

Echinacea purpurea Ruby Star

Ruby Star Purple Coneflower

Echinacea purpurea ‘Ruby Star’ — commonly called Ruby Star Coneflower — is a long-blooming perennial valued for its large, vivid ruby-red to deep magenta flowers with slightly reflexed petals and prominent dark cones, appearing from early summer into fall. Dark green, slightly coarse foliage forms a sturdy clump and remains attractive through the season, sometimes developing muted tones in fall. Its upright, well-branched habit and rich, saturated color make it a standout in borders and pollinator plantings.

Mature Size:
Width: 18–24 in
Height: 30–36 in

USDA Zones: 3a–8b
Light: Full sun
Soil: Well-drained soils; tolerant of poor, sandy, or rocky conditions
Water: Low to moderate; drought tolerant once established
Wildlife: Attracts bees, butterflies, and songbirds (seed heads)

Features & Landscape Uses:
Form: Upright, clump-forming perennial with strong, branching stems
Excellent for borders, mass plantings, pollinator gardens, and cut flower use
Deep, vibrant color provides strong visual impact
Long bloom period ensures consistent seasonal interest
Deer resistant and low maintenance

Maintenance:
Deadhead to extend blooming or leave seed heads for winter interest
Cut back in late fall or early spring
Divide clumps every few years if needed

Plant type
Perennial
Height
30-36''
Width
18-24"
Hardiness zones
3–8
Sunlight
Full Sun
Growth rate
Fast
Bloom time
Early Fall, Early Summer, Late Spring, Late Summer, Summer
Leaf color
Dark Green
Fall color
Dark Green
Attracts
Butterflies
Soil
Loamy, Sandy, Well Drained
Landscape use
Border, Container, Mass Planting, Rock Garden
Shape
Clumping, Upright
Fruit
Yes
Fragrant
Yes
Deer resistant
Yes
Drought tolerant
No