When to Plant Echinacea (Coneflower) in Oliver Springs, Tennessee (37840)

Location

Oliver Springs, Tennessee

ZIP Code

37840

USDA Zone

Last Frost

Sunday, April 5, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, January 25, 2026

Transplant Outdoors Sunday, April 19, 2026

Pro Tip: Start Echinacea (Coneflower) seeds indoors 10 weeks before your last frost date, then transplant outdoors around Sunday, April 19, 2026.

🌿 Plant Details

Scientific Name Echinacea purpurea

Days to Maturity 365 days

Mature Height 24-48"

Spread 24"

Type Perennial

☀️ Growing Requirements

☀️

Sun

Full Sun to Partial Shade

💧

Water

Low (drought tolerant once established)

↔️

Spacing

18" apart

🌱

Planting Depth

0.25" deep

Seeds typically germinate in 14-21 days

Ready to Plant Echinacea (Coneflower) in Oliver Springs?

Get your seeds now so they're ready by Sunday, January 25, 2026.

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Growing Echinacea (Coneflower) in Zone 7b

Echinacea (Coneflower) (Echinacea purpurea) is a popular garden vegetable. In Oliver Springs, Tennessee, which is in USDA Hardiness Zone 7b, you should start seeds indoors around Sunday, January 25, 2026.

Your average last frost date is Sunday, April 5, 2026. Plan to transplant your Echinacea (Coneflower) seedlings outdoors around Sunday, April 19, 2026, about 2 weeks after your last frost date.