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When to plant thyme in Zone 8a
Your thyme timeline — Zone 8a
| Start indoors | January 22 – February 5 |
|---|---|
| Transplant | March 26 – April 9 |
| Zone 8a last frost | ~03/26 |
| Zone 8a first frost | ~11/08 |
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 2026-08-28. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: Johnny's Selected Seeds — Seed-Starting Date Calculator chart.