Seed-start answer
Start tomatoes seeds indoors around Mar 4
In ZIP 64106, start tomatoes seeds indoors around Mar 4, about 42 days before the Apr 15 last-frost estimate.
Source: kansas-city-downtown frost station, USDA zone 6b, 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 64106, the Kansas City frost station, and the Apr 15 last-frost estimate.
Seed starting schedule
Tomatoes dates for Kansas City, MO
| Step | Date | How to use it |
|---|---|---|
| Start Indoors | March 4, 2026 | Start seeds under lights or in a bright indoor seed-starting space. |
| Transplant Outdoors | April 22, 2026 | Move hardened-off seedlings outside after the frost-risk window. |