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Watermelon plant growing in a garden

Photo: Wikimedia Commons

Growing Watermelon

Watermelons love heat space and sun — they are a rewarding crop but need a long warm season.

Quick Answer: Watermelon grows in Zones 4b–11b, taking 70–90 days to harvest.
🌡️ Zones 4b–11b ☀️ Full Sun 💧 Moderate Water 🔧 Intermediate 🪴 Container OK (15+ gal) 🏜️ Drought Tolerant 🐾 Pet Safe

Can You Grow Watermelon in Your Area?

Growing Tips

Start indoors 4 weeks before last frost. Transplant carefully — watermelons hate root disturbance. Give them maximum space. Use black plastic mulch to warm soil. Choose icebox varieties for containers.

Where Does Watermelon Grow?

Watermelon is suited to Zones 4b–11b. Here are some areas where it thrives:

✅ Zone 4b ✅ Zone 5a ✅ Zone 5b ✅ Zone 6a ✅ Zone 6b ✅ Zone 7a ✅ Zone 7b ✅ Zone 8a ✅ Zone 8b ✅ Zone 9a ✅ Zone 9b ✅ Zone 10a
Won't grow outdoors in:
❌ Zone 1a ❌ Zone 1b ❌ Zone 2a ❌ Zone 2b ❌ Zone 3a ❌ Zone 3b ❌ Zone 4a ❌ Zone 12a ❌ Zone 12b ❌ Zone 13a ❌ Zone 13b ❌ Canadian Zone 0 ❌ Canadian Zone 1 ❌ Canadian Zone 2 ❌ Canadian Zone 3 ❌ Canadian Zone 4

Frequently Asked Questions

Watermelon grows in USDA Zones 4b–11b.
Watermelon needs moderate care.
Yes — use a 15+ gallon pot.
Watermelon is safe for dogs and safe for cats.