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Smooth Purple Coneflower (Echinacea laevigata), whole plant
  • Smooth Purple Coneflower — close-up of leaves and flowers
  • Smooth Purple Coneflower — seasonal appearance
  • Smooth Purple Coneflower in a garden setting

Smooth Purple Coneflower

Echinacea laevigata

Medium · Some experience

About Smooth Purple Coneflower

Smooth Coneflower is a rare native perennial of the southeastern US—listed as federally threatened—reaching 3–4 feet tall with drooping pink-purple ray flowers and coppery cones. Found naturally in only a few Piedmont locations in the Carolinas, Georgia, and Virginia. Grown in conservation gardens and native plant nurseries as part of recovery efforts. More slender and graceful than the common Echinacea purpurea.

  • Native
  • Pollinator-friendly
WATER
Regular
Top inch dry
LIGHT
Full sun
6+ hrs direct
HARDY
Hardy to -20°F (-29°C)
USDA hardiness zones 5–8

How to care for Smooth Purple Coneflower

Watering

  • Springevery 5 days
  • Summerevery 4 days
  • Fallevery 7 days
  • Winterpause watering

Soil · Well-draining

  • Top dressingPine bark mulch10%
  • Main mixPotting soil + perlite 2:170%
  • DrainageLECA / gravel20%

Never skip the drainage layer — standing water is the top cause of root rot.

FERTILIZER

  • Springevery 30 days
  • Summerevery 30 days
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At a Glance

  • NativeNorth America
  • Height2–4 ft (0.6–1.2 m)
  • Spread1.5–2 ft (0.5–0.6 m)
  • Flower colorPink
  • Foliage colorGreen
  • SoilWell-drained, Loamy
  • LocationsYard

Bloom time

BLOOM CYCLE

Peak bloom

Jul

J
F
M
A
M
J
J
A
S
O
N
D

Drooping pink rays early to midsummer

Toxicity

Pets Slight

alkylamides and caffeic acid derivatives

Not reported

EXPOSURE No exposure route is reported.

EFFECT No toxic effect is reported.

NOTE No toxicity is reported for humans in this catalog; this is not evidence that the plant is edible or harmless.

Slight

  • All
  • Ingestion

EXPOSURE Eating any part of the plant.

EFFECT Mild vomiting.

NOTE Traditionally used medicinally; generally safe but may cause mild GI upset in pets.

Slight

  • All
  • Ingestion

EXPOSURE Eating any part of the plant.

EFFECT Mild vomiting.

NOTE Traditionally used medicinally; generally safe but may cause mild GI upset in pets.

Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.

DISTRIBUTION

Smooth Purple Coneflower · Native
  • Native
  • North America

History

Illustrated historical scene for Smooth Purple Coneflower

Echinacea laevigata occupies thin limestone and diabase soils in open woodlands of the southeastern Appalachians. It was long confused with E. purpurea until Cronquist recognized it as distinct in 1945. The US Fish and Wildlife Service listed it as federally endangered in 1992 after surveys documented dramatic declines from fire suppression, roadside mowing, and collection pressure from herbal markets targeting Echinacea species.

Conservation partners including the North Carolina Botanical Garden and the Center for Plant Conservation maintain seed banks and conduct reintroductions. Though available from some specialty native plant nurseries, it is rarely grown outside conservation contexts.

Its smooth stems and drooping pale pink rays distinguish it from commoner species. Federally listed as Threatened under the Endangered Species Act in 1992 due to habitat loss in the Piedmont Southeast. Native plant societies, The Nature Conservancy, and specialty nurseries now propagate it for restoration and home conservation gardens.

Symbolism & meaning

What It Symbolizes

Smooth Purple Coneflower carries strength with fragility close behind. It shares the coneflower family's prairie toughness, yet its own habitats have become rare enough to make every surviving population feel precious. Its meaning is restoration: the patient work of bringing a strong plant back from the edge.

  • Strength — Echinacea symbolism from medicinal use
  • Conservation — threatened species worth preserving

Where the Name Comes From

Genus from Greek 'echinos' (hedgehog) for the spiny cones; 'laevigata' means 'smooth' for the leaves.

Uses & Fun Facts

  • Pink coneflowers feed bees and butterflies all summer
  • Seed heads provide winter food for goldfinches
  • Rare native coneflower for piedmont meadow restorations

Related plants

More Echinacea plants

Plants with similar care

Frequently asked questions

How often should I water Smooth Purple Coneflower?

Water about every 5 days during the growing season, and always let excess water drain away.

How much light does Smooth Purple Coneflower need?

Full sun: 6+ hrs direct. Watch the leaves — scorching or stretching means the light needs adjusting.

Is Smooth Purple Coneflower toxic to cats or dogs?

Pets Slight (Dogs Slight · Cats Slight) Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.

Is Smooth Purple Coneflower easy to grow?

It is moderately demanding: a good choice once you have a little experience.

When does Smooth Purple Coneflower bloom?

It typically blooms Jul in the Northern Hemisphere.

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