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Can You Grow Watermelon in Delaware?

US · USDA Zone 7a · zones 6b, 7a

Grows well here

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

Plant zones

4b–11b

Delaware last frost

early March

Delaware first frost

late November

Days to harvest

70–90 days

When to plant Watermelons in Delaware

Start indoors

Feb 7

Transplant

Mar 7

Harvest

May 16 – Jun 5

Dates are approximate, based on Delaware'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 Delaware

Delaware has a humid subtropical climate moderated by the Atlantic. Mild winters and warm summers support a long growing season for mid-Atlantic vegetables.

See what grows well in Delaware →

Frequently asked questions

Can you grow Watermelon in Delaware?

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

What zone is Delaware?

Delaware spans USDA Zone 7a (6b, 7a).

When do you plant Watermelons in Delaware?

Plant Watermelons around early March (start indoors Feb 7), harvest May 16 – Jun 5.