When to plant sage in Zone 4b
In Zone 4b, start indoors around March 22 – April 5 and transplant around May 10 – May 24.
Your sage timeline — Zone 4b
| Start indoors | March 22 – April 5 |
|---|---|
| Transplant | May 10 – May 24 |
| Zone 4b last frost | ~05/10 |
| Zone 4b first frost | ~09/30 |
Start indoors; set out 1 week after the last frost. [src]Cited: Johnny's Selected Seeds — Seed-Starting Date Calculator chart
Dates computed from Zone 4b'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.