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When to plant swiss chard in Zone 7a
In Zone 7a, direct-sow or transplant around March 25 – April 8. For a fall crop, sow around August 6 – August 20.
Your swiss chard timeline — Zone 7a
| Start indoors | February 18 – February 25 |
|---|---|
| Transplant | March 25 – April 8 |
| Sow for fall | August 6 – August 20 |
| Zone 7a last frost | ~04/15 |
| Zone 7a first frost | ~10/26 |
Start indoors or direct-sow; set out / sow 2 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 7a'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).