Seed-start answer
Carrots is usually direct-sown around Mar 11
In ZIP 97204, carrots is usually direct-sown around Mar 11 instead of started indoors.
Source: portland-intl frost station, USDA zone 9a, last updated 2026-06-28. Verify locally before planting high-value crops because microclimates, current weather, and yard exposure can move the safe date.
This uses ZIP 97204, the Portland frost station, and the Apr 1 last-frost estimate.
Seed starting schedule
Carrots dates for Portland, OR
| Step | Date | How to use it |
|---|---|---|
| Direct Sow | March 11, 2026 | Sow seed outside when the crop and soil can handle the window. |