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When to plant basil in Zone 8a
In Zone 8a, start indoors around February 23 and transplant around March 30 – April 13.
Your basil timeline — Zone 8a
| Start indoors | February 23 |
|---|---|
| Transplant | March 30 – April 13 |
| Zone 8a last frost | ~03/26 |
| Zone 8a first frost | ~11/08 |
Start indoors; set out 1–2 weeks after the last frost. [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”
Dates computed from Zone 8a'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”.