When to Plant Dahlia in Fort Yukon, Alaska (99740)

Location

Fort Yukon, Alaska

ZIP Code

99740

USDA Zone

Last Frost

Monday, May 25, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, April 13, 2026

Transplant Outdoors Monday, June 1, 2026

Pro Tip: Start Dahlia seeds indoors 6 weeks before your last frost date, then transplant outdoors around Monday, June 1, 2026.

🌿 Plant Details

Scientific Name Dahlia pinnata

Days to Maturity 90 days

Mature Height 18-60"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

18" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 7-14 days

Ready to Plant Dahlia in Fort Yukon?

Get your seeds now so they're ready by Monday, April 13, 2026.

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Growing Dahlia in Zone 3a

Dahlia (Dahlia pinnata) is a popular garden vegetable. In Fort Yukon, Alaska, which is in USDA Hardiness Zone 3a, you should start seeds indoors around Monday, April 13, 2026.

Your average last frost date is Monday, May 25, 2026. Plan to transplant your Dahlia seedlings outdoors around Monday, June 1, 2026, about 1 weeks after your last frost date.