When to Plant Echinacea (Coneflower) in Prudhoe Bay, Alaska (99734)

Location

Prudhoe Bay, Alaska

ZIP Code

99734

USDA Zone

Last Frost

Monday, June 1, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, March 23, 2026

Transplant Outdoors Monday, June 15, 2026

Pro Tip: Start Echinacea (Coneflower) seeds indoors 10 weeks before your last frost date, then transplant outdoors around Monday, June 15, 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 Prudhoe Bay?

Get your seeds now so they're ready by Monday, March 23, 2026.

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Growing Echinacea (Coneflower) in Zone 2a

Echinacea (Coneflower) (Echinacea purpurea) is a popular garden vegetable. In Prudhoe Bay, Alaska, which is in USDA Hardiness Zone 2a, you should start seeds indoors around Monday, March 23, 2026.

Your average last frost date is Monday, June 1, 2026. Plan to transplant your Echinacea (Coneflower) seedlings outdoors around Monday, June 15, 2026, about 2 weeks after your last frost date.