Purple coneflower
Also known as
Eastern purple coneflower, Coneflower, Echinacea
Keep this plant’s care guide close at hand.
Get the appAbout Purple coneflower
A hardy herbaceous perennial native to central and eastern North America, Echinacea purpurea (purple coneflower) forms clumps of rough, lanceolate foliage and sturdy, branching stems 60–120 cm tall. From early summer into early fall, it bears abundant daisy-like composite blooms with drooping purple-pink ray florets surrounding a prominent, spiny orange-brown cone (the seed head). Flowers attract bees, butterflies, and other pollinators; spent cones provide winter seed for goldfinches and visual interest. Adaptable to a range of soils so long as drainage is good, it thrives in full sun and tolerates heat and periodic drought once established. Long stems make excellent cut flowers, and the plant’s roots and leaves have a long history in herbal medicine. In gardens, it excels in pollinator borders, prairie and meadow plantings, and low-maintenance xeriscapes, pairing well with grasses and other sun-loving perennials. Generally pest- and disease-resistant, it may experience occasional powdery mildew or aster yellows; good spacing and sanitation help prevent issues.
Taxonomy
Properties & Requirements
How to care for Purple coneflower
Water
Water newly planted Echinacea deeply and regularly for the first growing season—about 2.5 cm (1 inch) of total moisture per week from rain or irrigation—allowing the top 2–3 cm of soil to dry between waterings. Once established, it is drought tolerant; water only during extended dry spells, soaking the root zone rather than sprinkling. In containers, check moisture more frequently and water when the top 2–5 cm are dry. Always avoid waterlogged conditions; consistent drainage is key to preventing crown rot.
Light
Provide full sun for best flowering: at least 6–8 hours of direct light daily. Plants tolerate light afternoon shade, especially in hot climates, but expect fewer, smaller blooms and taller, looser stems in shadier sites. In very hot, dry regions, early morning and late afternoon sun with light midday shade helps reduce stress. Avoid dense shade, which promotes weak growth and poor flowering. Site plants where they receive good air circulation and unimpeded sun for sturdy stems and maximum pollinator activity.
Nutrients
Purple coneflower is a light feeder. In average garden soil, an annual top-dressing of compost in early spring is typically sufficient. Where soils are poor, apply a single, light dose of a balanced, slow-release fertilizer (e.g., 5-10-5 or 10-10-10) at half the label rate in spring as new growth emerges. Avoid high nitrogen, which encourages lanky growth and fewer flowers. Do not fertilize late in the season; excess nutrients can reduce winter hardiness and increase susceptibility to rot.
Temperature
Echinacea purpurea is cold-hardy in USDA Zones 3–9. While top growth dies back in winter, crowns survive temperatures to roughly −34°C (−30°F) when planted in the ground with good drainage. Active growth and best flowering occur in warm weather, roughly 18–30°C (65–85°F). It tolerates summer heat and humidity if soil drains well. In containers, protect roots from repeated freeze–thaw cycles and avoid waterlogged media in winter. Mulch 5–7 cm in cold climates to moderate soil temperature without burying the crown.
