When to plant watermelon in zone 4

Watermelon in USDA zone 4

Average zone 4 frost dates: last spring frost ≈ May 10, first fall frost ≈ Sep 25 (138 frost-free days). Local dates can vary by 2-3 weeks.

Sow in warm soil (70 °F+); in short seasons start indoors 3-4 weeks early in pots.

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Other zones

• Watermelon in zone 3
• Watermelon in zone 5
• Watermelon in zone 6
• Watermelon in zone 7
• Watermelon in zone 8
• Watermelon in zone 9
• Watermelon in zone 10
• Zone 4 planting calendar