Species · forb

Purple coneflower

Echinacea purpurea

Purple coneflower (Echinacea purpurea) is the most recognizable native prairie forb in the Midwest and the backbone of most CP42 pollinator mixes. Its June–August bloom bridges the summer nectar gap between spring ephemerals and late-summer asters, making it a keystone monarch fueling species.

Category
forb
Mature height
2–4 ft
Bloom window
June through August
Moisture
Mesic to dry-mesic; drought-tolerant once established
Seeding rate
0.1–0.25 PLS lb/ac in a diverse mix
Seeds per lb
~117,000
Native range
Native to the eastern tallgrass prairie and Ozark plateaus

Why landowners plant purple coneflower

  • Long bloom window (8–10 weeks) covers the summer monarch nectar gap.
  • Seedheads persist into winter as goldfinch and songbird food.
  • Establishes quickly for a native forb — visible bloom by year two on most sites.
  • Deep taproot makes mature plants nearly drought-proof.

Site fit

Purple coneflower thrives on mesic to dry-mesic upland soils with good drainage. It tolerates clay but rots in poorly drained hydric ground. Pale purple coneflower (Echinacea pallida) is the correct species for shortgrass and drier Great Plains sites — many Iowa and Minnesota state programs specifically require pallida rather than purpurea for ecotype compliance. Confirm with your NRCS field office which species your practice specifies.

Establishment

Coneflower seed benefits from cold stratification, so dormant seeding November through February gives the best emergence. Plant 1/8 inch deep or surface-broadcast with cultipacking. Expect a rosette-only first year, first bloom in year two, and full stand vigor by year three.

Management

Coneflower tolerates a spring burn on a 3–5 year rotation. Avoid burning during bloom or seed-set. Mow at 6–8 inches during the establishment year to control annual weeds without cutting the growing rosettes.

CRP practice fit

CP42

Standard summer-bloom component of every quality pollinator mix.

CP25

Included in diversity CP25 mixes at 0.1–0.2 lb/ac for visual and pollinator value.

CP43

Featured species in prairie strips for pollinator conservation.

Featured mixes with purple coneflower

Pairs well with

Butterfly milkweed · Black-eyed Susan · Prairie blazing star · Little bluestem · Wild bergamot

Frequently asked questions

What's the difference between purple coneflower and pale purple coneflower?

Purple coneflower (Echinacea purpurea) has wide, dark leaves and is native to the eastern tallgrass prairie. Pale purple coneflower (Echinacea pallida) has narrower leaves and drooping pink petals — it is native to the drier central and western prairie and is the ecotype-correct choice for most Iowa and Great Plains CRP programs.

How much coneflower seed do I need in a CP42 pollinator mix?

0.1 to 0.25 PLS lb per acre is standard. Higher rates crowd out other forbs; lower rates leave summer bloom gaps.

When does purple coneflower first bloom after planting?

Expect a rosette-only first year, first bloom in year two, and full flowering in year three. Do not judge stand success on first-year visible bloom.

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