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Can You Grow Watermelon in Maine?

US · USDA Zone 5a · zones 3b, 4a, 4b, 5a, 5b

Grows well here

Watermelons thrive here — they love the long warm season your zone provides.

Plant zones

4b–11b

Maine last frost

mid-April

Maine first frost

mid-October

Days to harvest

70–90 days

When to plant Watermelons in Maine

Start indoors

Mar 18

Transplant

Apr 15

Harvest

Jun 24 – Jul 14

Dates are approximate, based on Maine's average frost dates. Your exact yard may vary by microclimate.

About Watermelon

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

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.

Full watermelon growing guide →

Gardening in Maine

Maine has a cool humid continental climate. Coastal areas are Zone 5b-6a; inland and northern Maine is Zone 3b-4a. Short summers but excellent for potatoes, blueberries, and cool crops.

See what grows well in Maine →

Frequently asked questions

Can you grow Watermelon in Maine?

Watermelons thrive here — they love the long warm season your zone provides.

What zone is Maine?

Maine spans USDA Zone 5a (3b, 4a, 4b, 5a, 5b).

When do you plant Watermelons in Maine?

Plant Watermelons around mid-April (start indoors Mar 18), harvest Jun 24 – Jul 14.