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When to plant spinach in Zone 4a

In Zone 4a, direct-sow around April 6 – April 20. For a fall crop, sow around July 23 – August 6.

Your spinach timeline — Zone 4a

Direct-sowApril 6 – April 20
Sow for fallJuly 23 – August 6
Zone 4a last frost~05/14
Zone 4a first frost~09/27
Direct-sow 3–6 weeks before the last frost. [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”

Dates computed from Zone 4a's median NOAA frost normals and the cited rule. Your town may differ by a week or two — check your exact ZIP.

What you'll need

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Last verified 2026-07-16. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; UGA Extension (days to maturity).

Spinach in other zones

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