Is It Too Late to Plant Watermelon from Seed in Pennsylvania?

Timing Watermelon for a Zone 5/6 Garden

Watermelons need ~90 days from seed to harvest. In Meadville, PA (zone 5b), planting in early June targets early September maturity—if frost holds off.

Key Dates

• Average first frost: Early October.
• Days to maturity (seed): 80–100 days for most varieties.
• 'Sugar Baby' (icebox type): ~75–80 days—your best bet for late planting.

Recommendation

Plant now only if you choose an early variety (75 days or less) and accept frost risk. Use black plastic mulch to warm soil faster. Row covers can extend season by 2–3 weeks.

Better Alternative

Buy transplants from a nursery—they're 3–4 weeks ahead. Or wait and plan for next year: start seeds indoors late April, transplant after Memorial Day.

If you plant now and get a light frost, fruit may survive if covered. Hard freeze ends it. Your call—gardening is gambling with weather!