When to plant winter squash in zone 3

Winter Squash in USDA zone 3

Average zone 3 frost dates: last spring frost ≈ May 20, first fall frost ≈ Sep 15 (118 frost-free days). Local dates can vary by 2-3 weeks.

Direct sow 1-2 weeks after the last frost; needs a long warm season.

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Other zones

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