Botanical Name: Echinacea purpurea
Native: Eastern and central U.S.
Hardiness: Hardy perennial in USDA zones 3–8; grown as an annual in warmer zones.
Plant Dimensions: 3'–4' tall
Variety Information: 2"–3" long, drooping lavender petals surrounding a purple/maroon/brown conical center on tall stems above foliage.
Exposure: Full sun to part shade
Bloom Period: Summer to frost
Attributes: Cut Flowers, Deer Resistant
When to Sow Outside: 2 to 4 weeks before your average last frost date, or as late as 2 months before first fall frost.
When to Start Inside: 10 to 12 weeks before your average last frost date (might bloom first year if started indoors).
Days to Emerge: 10– 20 days
Seed Depth: ¼"
Seed Spacing: A group of 3 seeds every 18"
Thinning: When 1" tall, thin to 1 every 18"
Purple Coneflower Echinacea Seeds Reviews