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When to plant artichoke in Zone 3b
In Zone 3b, start indoors around February 25 – March 25 and transplant around May 13 – May 27.
Your artichoke timeline — Zone 3b
| Start indoors | February 25 – March 25 |
|---|---|
| Transplant | May 13 – May 27 |
| Zone 3b last frost | ~05/20 |
| Zone 3b first frost | ~09/19 |
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 3b'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.