When to Plant Watermelon in Atlanta, Georgia (30321)

Location

Atlanta, Georgia

ZIP Code

30321

USDA Zone

Last Frost

Sunday, March 15, 2026

📅 Planting Calendar

Start Seeds Indoors Sunday, February 15, 2026

Transplant Outdoors Sunday, March 29, 2026

Pro Tip: Start Watermelon seeds indoors 4 weeks before your last frost date, then transplant outdoors around Sunday, March 29, 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 Atlanta?

Get your seeds now so they're ready by Sunday, February 15, 2026.

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🤝 Good Companions

CornSunflowerMarigold

⚠️ Avoid Planting Near

Potato

See the full companion planting guide for Watermelon →

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Growing Watermelon in Zone 8b

Watermelon (Citrullus lanatus) is a popular garden vegetable. In Atlanta, Georgia, which is in USDA Hardiness Zone 8b, you should start seeds indoors around Sunday, February 15, 2026.

Your average last frost date is Sunday, March 15, 2026. Plan to transplant your Watermelon seedlings outdoors around Sunday, March 29, 2026, about 2 weeks after your last frost date.