When to plant Carrot in Zone 4a
In Zone 4a, Carrot: direct sow outdoors around Apr 24–May 29; direct sow outdoors around Jul 10–Jul 24. Expect to harvest around Jul 3–Aug 7.
| Step | When |
|---|---|
| Direct sow outdoors | Apr 24 – May 29 |
| Direct sow outdoors | Jul 10 – Jul 24 |
| Harvest | Jul 3 – Aug 7 |
| Harvest | Sep 18 – Oct 2 |
Tip: Direct-sow only (roots dislike transplanting). Keep the seedbed evenly moist until germination.
Zone 4a averages a last spring frost around May 15 and a first fall frost around Sep 18. These are zone averages — look up your ZIP for your exact area.
See the full Zone 4a calendar in the tool →