Greenly Garden

How to grow Purple coneflower

Echinacea purpurea · Echinacea, coneflower

Hardy perennial native to North America, with large daisy-like purple flowers around a raised cone. It blooms from June to August and draws bees, butterflies and, later, seed-eating birds.

Purple coneflower
Photo: Eric Hunt, CC BY-SA 4.0, Wikimedia Commons

Quick facts

TypeFlower
FamilyAsteraceae
LightFull sun
Soil pH6–8
Frosttolerates light frost
Soil for sowingfrom 18 °C
Germination12 days
Seedlings ready50 days
Where it growsOpen ground

When to plant

Sow for seedlings about 9 weeks before planting out.

It tolerates light frost: plant out in open ground about three weeks before your last spring frost.

Frost dates · When to plant

Care

Open ground

StageWateringTemperatureFeeding
Seedlingsevery 3 days——
Growthevery 7 days——
Floweringevery 7 days——

Growing notes

Light

Best in full sun, at least six hours a day; it also grows in part shade.

Soil

Average, well-drained soil, from sandy to clay, near neutral (pH 6–8). Tolerates drought, heat, humidity and poor soil, but not waterlogging.

Care

Sow 3 mm deep indoors 8–10 weeks before planting out, moving seedlings into cells once the first true leaves show; or sow outside in spring when the soil reaches 18 °C, or in autumn. Seedlings appear in 10–15 days. Space plants 45–60 cm apart. Plants from seed may not flower until their second year. Water in dry spells while plants establish; no feeding is needed. Removing faded flowers is optional — leave some seed heads and stems over winter for birds and stem-nesting bees, and it will self-seed. Divide crowded clumps about every 4 years. Watch for Japanese beetles, leaf spot and aster yellows.

Sources

Figures checked against these sources.

  1. gbif.org/species/3150935
  2. wikidata.org/wiki/Q272661
  3. en.wikipedia.org/wiki/Echinacea_purpurea
  4. uk.wikipedia.org/wiki/Ехінацея_пурпурова
  5. ru.wikipedia.org/wiki/Эхинацея_пурпурная
  6. es.wikipedia.org/wiki/Echinacea_purpurea
  7. missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=c580
  8. johnnyseeds.com/growers-library/flowers/echinacea/echinacea-key-growing-information.html
  9. prairiemoon.com/echinacea-purpurea-purple-coneflower
  10. plants.ces.ncsu.edu/plants/echinacea-purpurea/