How to Grow Sundown Coneflower
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Sundown Coneflower
Echinacea purpurea 'Sundown'
flowerSundown is a striking cultivar of purple coneflower featuring deep burgundy-red petals that fade to orange-red at the petal tips, creating a dramatic two-tone effect. This perennial is a pollinator magnet and provides season-long color from mid-summer through fall. It's a hardy, low-maintenance plant that thrives in diverse growing conditions.
When should you plant Sundown Coneflower in your zone?
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Example Sundown Coneflower timeline · Pittsburgh, PA (Zone 6b)
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Plant Sundown Coneflower
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Sundown Coneflower blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Sundown Coneflower dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9, with best performance in zones 4-8
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Seedling
2-3 weeksTiny seedlings emerge with simple cotyledons and develop first true leaves
Keep soil consistently moist but not waterlogged. Provide bright light to prevent leggy growth. Thin seedlings if directly sown.
Vegetative Growth
4-6 weeksPlant develops sturdy stems and lance-shaped green foliage; no flowers yet
Water moderately during dry spells. Pinch back in early season if desired to promote bushier growth. Apply light mulch around base.
Flowering
8-12 weeks (mid-July through September)Distinctive red-orange daisy-like flowers appear with prominent orange-brown central cone; multiple blooms per stem
Deadhead spent flowers to extend blooming period. Monitor for pests. Provide support only if needed for taller stems. Water during extended dry periods.
Seed Development
4-6 weeksCone becomes more prominent and hard; petals drop and seed head dries for winter interest
Stop deadheading in late summer to allow seed maturation. Leave seed heads through fall and winter for wildlife food and ornamental appeal.
Dormancy
November through MarchAbove-ground foliage dies back completely; plant rests underground
Cut back dried stems in late fall or early spring (before new growth). No watering needed. Plant is fully hardy and needs no protection.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use miticide if severe. Improve air circulation to prevent infestations.
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Handpick in early morning; use pheromone traps away from plants. Treat soil with beneficial nematodes for grubs.
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Remove infected plants showing yellowing and stunting. Use row covers on young plants. Control weeds that harbor vectors.
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Ensure good air circulation. Spray with sulfur or neem oil if needed. Remove heavily infected leaves.
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Remove by hand, especially at night. Create barriers with copper tape or diatomaceous earth around plants.
Uses
Herbal tea and wellness drinks
CulinaryRoots and flowers of purple coneflower are traditionally used in teas and herbal preparations. The plant has been used in folk medicine for immune support. [source]
Pollinator support
WildlifeSundown coneflowers are excellent nectar and pollen sources for bees, butterflies, and other pollinating insects throughout summer and fall. Seed heads provide food for birds and beneficial insects. [source]
Cut and dried arrangements
CraftThe dramatic bi-colored flowers are striking in fresh arrangements, and dried seed heads offer lasting texture and interest for dried flower crafts and floral displays. [source]
Herbal remedy preparation
MedicinalEchinacea roots contain active compounds traditionally used in herbal medicine formulations. Roots are typically harvested from 2-3 year old plants in fall. [source]
Ornamental garden focal point
HouseholdSundown's unique red-to-orange bi-color makes it an eye-catching specimen plant and excellent choice for perennial borders, prairie gardens, and pollinator plantings. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
For cut flowers, harvest in the morning when buds are opening or flowers are fully open. Cut stems just above a leaf node to encourage branching. Flowers last 7-10 days in a vase. For dried seed heads, cut after petals have fallen and cone is brown and dry (late September-October); bundle and hang upside down in a cool, dry location. Seeds can be collected for propagation by rubbing dried cones over a bowl.
Fun Facts
- 🌱 The name 'coneflower' comes from the prominent spiky central cone of the flower, which resembles a cone. This orange-brown cone is actually composed of tightly packed disk flowers.
- 🌱 Sundown coneflower is native to the central and eastern United States and has been cultivated by Indigenous peoples for centuries for medicinal purposes.
- 🌱 A single mature Sundown coneflower plant can produce hundreds of flowers over its blooming season, making it incredibly prolific and valuable for pollinator support.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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