When to Plant Watermelon in Fresno, California (93708)

Location

Fresno, California

ZIP Code

93708

USDA Zone

Last Frost

Tuesday, February 10, 2026

📅 Planting Calendar

Start Seeds Indoors Tuesday, January 13, 2026

Transplant Outdoors Tuesday, February 24, 2026

Pro Tip: Start Watermelon seeds indoors 4 weeks before your last frost date, then transplant outdoors around Tuesday, February 24, 2026.

🌿 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

Ready to Plant Watermelon in Fresno?

Get your seeds now so they're ready by Tuesday, January 13, 2026.

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🤝 Good Companions

CornSunflowerMarigold

⚠️ Avoid Planting Near

Potato

Other Plants for Fresno

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Growing Watermelon in Zone 9b

Watermelon (Citrullus lanatus) is a popular garden vegetable. In Fresno, California, which is in USDA Hardiness Zone 9b, you should start seeds indoors around Tuesday, January 13, 2026.

Your average last frost date is Tuesday, February 10, 2026. Plan to transplant your Watermelon seedlings outdoors around Tuesday, February 24, 2026, about 2 weeks after your last frost date.