Watermelon planting calendar for USDA Zone 7a

Asheville, Winston-Salem, Roanoke, Nashville, Little Rock. Average last spring frost April 15, first fall frost October 15 — a 183-day frost-free season.

Zone fit: good

Watermelon is frost-tender, so timing the outdoor transplant to the last frost matters more here than in warmer zones. Row cover buys 2 weeks of head start.

Key dates

Start seeds indoors

March 18 – April 1

Direct-seed or transplant outdoors

April 29 – May 20

Expected first harvest

July 30 – August 27

Windows are calculated from your zone's average frost dates. Adjust ±1 week for microclimates, elevation, and your own frost records.

Spacing and soil

Plant spacing: 36″
Row spacing: 96″
Seed depth: 1″
Soil temperature: 75–95°F
Frost tolerance: tender
Days to harvest: 85 days

Grower notes for Zone 7a

Ripeness cue: tendril nearest the fruit turns brown and the ground spot yellows. Do not go by thumping alone.

Plant near: corn, radish

Keep away from: potatoes

Other cucurbits for Zone 7a

Same crop, other zones

Track your own plantings

BAU Farm Intelligence turns these windows into per-field tasks — indoor seed-start reminders, transplant dates, harvest projections — using your farm's actual frost history.

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