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When to plant artichoke in Zone 5a
In Zone 5a, start indoors around February 17 – March 17 and transplant around May 5 – May 19.
Your artichoke timeline — Zone 5a
| Start indoors | February 17 – March 17 |
|---|---|
| Transplant | May 5 – May 19 |
| Zone 5a last frost | ~05/12 |
| Zone 5a first frost | ~10/01 |
Start indoors; set out on the frost-free date (the average last frost). [src]Cited: Johnny's Selected Seeds — Seed-Starting Date Calculator chart
Dates computed from Zone 5a'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 2026-07-17. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: Johnny's Selected Seeds — Seed-Starting Date Calculator chart.