When to plant Calendula in Zone 3b
In Zone 3b, Calendula: direct sow outdoors around May 6–Jun 3; direct sow outdoors around Jul 18–Aug 1. Expect to harvest around Jun 25–Jul 23.
| Step | When |
|---|---|
| Direct sow outdoors | May 6 – Jun 3 |
| Direct sow outdoors | Jul 18 – Aug 1 |
| Harvest | Jun 25 – Jul 23 |
| Harvest | Sep 6 – Sep 20 |
Tip: Cool-season and edible; deadhead often and it'll bloom from spring into fall.
Zone 3b averages a last spring frost around May 20 and a first fall frost around Sep 12. These are zone averages — look up your ZIP for your exact area.
See the full Zone 3b calendar in the tool →