When to plant Bush Bean in Zone 4a
In Zone 4a, Bush Bean: direct sow outdoors around May 15–Jun 12. Expect to harvest around Jul 9–Aug 6.
| Step | When |
|---|---|
| Direct sow outdoors | May 15 – Jun 12 |
| Harvest | Jul 9 – Aug 6 |
Tip: Wait until the soil has warmed — beans rot in cold, wet ground. Sow every 2 weeks for a steady harvest.
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 →