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When to Plant Sweet Potato in Galena, Alaska (99741)

Location

Galena, Alaska

ZIP Code

99741

USDA Zone

1b

Last Frost

Wednesday, June 10, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, June 10, 2026

Pro Tip: Sow Sweet Potato directly outdoors around your last frost date when soil starts to warm.

🌿 Plant Details

Scientific Name Ipomoea batatas
Days to Maturity 100 days
Mature Height 12-18"
Spread 36"
Type Vine
Fruit Size Medium-Large (6-12 oz per root)

☀️ Growing Requirements

☀️

Sun

Full Sun (8+ hours)

💧

Water

Moderate (reduce as harvest approaches)

↔️

Spacing

12" apart

🌱

Planting Depth

4" deep

Seeds typically germinate in 14-21 days

Ready to Plant Sweet Potato in Galena?

Get your seeds now so they're ready by Wednesday, June 10, 2026.

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🤝 Good Companions

OkraDillThyme

⚠️ Avoid Planting Near

SquashSunflower

Other Plants for Galena

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Growing Sweet Potato in Zone 1b

Sweet Potato (Ipomoea batatas) is a popular garden vegetable. In Galena, Alaska, which is in USDA Hardiness Zone 1b, you should direct sow seeds around Wednesday, June 10, 2026.

Your average last frost date is Wednesday, June 10, 2026. Sweet Potato grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.