🌱 MyLocalPlanting

When to Plant Watermelon in Kaktovik, Alaska (99747)

Location

Kaktovik, Alaska

ZIP Code

99747

USDA Zone

3a

Last Frost

Monday, May 25, 2026

📅 Planting Calendar

Start Seeds Indoors Monday, April 27, 2026
Transplant Outdoors Monday, June 8, 2026

Pro Tip: Start Watermelon seeds indoors 4 weeks before your last frost date for best results.

🌿 Plant Details

Scientific Name Citrullus lanatus
Days to Maturity 80 days
Mature Height 12-24"
Spread 72"
Type Vine
Fruit Size Large (10-30 lbs)

☀️ Growing Requirements

☀️

Sun

Full Sun (8+ hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

72" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 4-12 days

🤝 Good Companions

CornSunflowerMarigold

⚠️ Avoid Planting Near

Potato

Other Plants for Kaktovik

Growing Watermelon in Zone 3a

Watermelon (Citrullus lanatus) is a popular garden vegetable. In Kaktovik, Alaska, which is in USDA Hardiness Zone 3a, you should start seeds indoors around Monday, April 27, 2026.

Your average last frost date is Monday, May 25, 2026. Plan to transplant your Watermelon seedlings outdoors around Monday, June 8, 2026, about 2 weeks after your last frost date.