When to plant Carrot in Zone 4b
In Zone 4b, Carrot: direct sow outdoors around Apr 19–May 24; direct sow outdoors around Jul 14–Jul 28. Expect to harvest around Jun 28–Aug 2.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 19 – May 24 |
| Direct sow outdoors | Jul 14 – Jul 28 |
| Harvest | Jun 28 – Aug 2 |
| Harvest | Sep 22 – Oct 6 |
Tip: Direct-sow only (roots dislike transplanting). Keep the seedbed evenly moist until germination.
Zone 4b averages a last spring frost around May 10 and a first fall frost around Sep 22. These are zone averages — look up your ZIP for your exact area.
See the full Zone 4b calendar in the tool →