Ruby Star Coneflower
Ruby Star Coneflower
A Classic Rosy-Red Prairie Coneflower for Pollinators
Ruby Star Coneflower (Echinacea purpurea 'Rubinstern') is a celebrated improvement on the wild prairie coneflower — large, rosy-red daisies with broad, nearly horizontal petals around a coppery cone, on strong upright stems. Blooming midsummer into fall, it's a magnet for bees and butterflies, then feeds goldfinches from its seed heads. Tough, adaptable, and reliably hardy, it's a dependable prairie-garden classic for sunny borders in Woodbury, Maple Grove, and Plymouth.
Ruby Star Coneflower Plant Details
| Attribute | Detail |
|---|---|
| Botanical Name | Echinacea purpurea 'Rubinstern' (Ruby Star) |
| Mature Size | 28–36 in. tall, 18–24 in. wide |
| Hardiness Zone | 3–9 (Twin Cities is zone 4b–5a — fully hardy) |
| Light | Full sun to part shade |
| Bloom Time | Midsummer into fall |
| Flower Color | Rosy-red with a coppery cone |
| Soil | Adaptable — tolerates clay and lean soil; prefers good drainage |
| Winter Hardiness | Reliable to -30°F once established |
| Deer Resistance | Usually avoided by deer; may nibble young plants |
| Native Status | Selection of native purple coneflower (prairie wildflower) |
Landscape Uses in Minnesota
Prairie and pollinator gardens: A naturalistic staple — mass it for waves of color and pollinator traffic. Space 18–24 inches apart.
Cut-flower and low-water beds: Long, strong stems make great bouquets; very tough once established. Leave seed heads for goldfinches and winter structure. Pair with black-eyed Susan, bee balm, and little bluestem.
Best Time to Plant in Minnesota
Plant in spring (late April–May) or early fall. Adaptable but appreciates good drainage over winter.
How to Plant Ruby Star Coneflower
Dig a hole twice the pot's width at the same depth, amending heavy clay with compost. Set the crown level, backfill, water in, and mulch lightly, keeping mulch off the crown. Space 18–24 inches apart.
Watering Ruby Star Coneflower
First year: Water every 2–3 days at first, then weekly. Stop 2–3 weeks before the ground freezes.
After year one: Drought-tolerant — water only during extended dry spells.
Q: Is it native?
It's a selection of Echinacea purpurea, the purple coneflower — a North American prairie wildflower and pollinator staple.
Q: Will it survive a Minnesota winter?
Yes — one of the hardiest coneflowers, reliable to zone 3.
Q: Will it self-sow?
It can self-sow modestly if seed heads are left — welcome in naturalized plantings, or deadhead to limit it.
Q: Is it deer-resistant?
Generally yes — deer usually avoid coneflowers, though young growth may be sampled.
You May Also Like
Magnus Coneflower (Echinacea purpurea): Another classic purple-pink prairie coneflower.
Black-Eyed Susan (Rudbeckia): A gold-daisy prairie partner for pollinators.
Bee Balm (Monarda): A native pollinator companion with overlapping bloom.
How Many Ruby Star Coneflower Do I Need?
Coneflowers look best massed. Space plants about 20 inches apart for waves of color and steady pollinator traffic:
| Bed Run | Plants Needed (20 in. apart) |
|---|---|
| 5 ft | 3 |
| 10 ft | 6 |
| 15 ft | 9 |
| 20 ft | 12 |
For a naturalistic prairie look, plant in groups of 3–5.
Ruby Star Coneflower Season-by-Season in Minnesota
- Spring: Sturdy clumps of dark-green foliage build up on strong upright stems.
- Summer: Large rosy-red daisies with coppery cones open midsummer, drawing bees and butterflies.
- Fall: Bloom continues into fall; leave the seed heads standing as goldfinches feed on them.
- Winter: Dark seed-head cones give the bed structure and keep feeding birds through the cold.
At a Glance
✔ Pollinator-Friendly ✔ Deer-Resistant ✔ Drought-Tolerant
Plant It With
- Magnus Coneflower — a classic purple-pink coneflower to mass alongside the rosy-red for layered color.
- Little Bluestem — a native bunchgrass that gives the planting prairie texture and fall color.
- Prairie Dropseed — fine, fragrant native grass that frames the coneflowers beautifully.
- Autumn Fire Sedum — a sturdy, drought-tough partner that extends the pollinator show into fall.
Is Ruby Star Coneflower Right for Your Yard?
Ruby Star thrives in full sun in well-drained or lean soil, takes heat and drought once established, and is one of the hardiest coneflowers — perfect for prairie, pollinator, and cut-flower beds. It is not a fit for deep shade, which causes weak floppy growth, or for soil that stays constantly wet, which leads to crown rot.