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When to Plant Pumpkin in Kalskag, Alaska (99607)

Location

Kalskag, Alaska

ZIP Code

99607

USDA Zone

3b

Last Frost

Wednesday, May 20, 2026

📅 Planting Calendar

Direct Sow Outdoors Wednesday, April 8, 2026

Pro Tip: Sow Pumpkin directly outdoors 6 weeks before your last frost date.

🌿 Plant Details

Scientific Name Cucurbita maxima
Days to Maturity 100 days
Mature Height 12-24"
Spread 120"
Type Vine
Fruit Size Large (8-20 lbs)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1 inch/week)

↔️

Spacing

60" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 5-10 days

Ready to Plant Pumpkin in Kalskag?

Get your seeds now so they're ready by Wednesday, April 8, 2026.

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🤝 Good Companions

CornBeanMarigoldNasturtium

⚠️ Avoid Planting Near

Potato

Other Plants for Kalskag

Growing Pumpkin in Zone 3b

Pumpkin (Cucurbita maxima) is a popular garden vegetable. In Kalskag, Alaska, which is in USDA Hardiness Zone 3b, you should direct sow seeds around Wednesday, April 8, 2026.

Your average last frost date is Wednesday, May 20, 2026. Pumpkin grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.