When to plant Marigold in Zone 3b
In Zone 3b, Marigold: start seeds indoors around Apr 8–Apr 22; transplant outdoors around May 27–Jun 3; direct sow outdoors around May 20–Jun 3. Expect to harvest around Jul 9–Jul 23.
| Step | When |
|---|---|
| Start seeds indoors | Apr 8 – Apr 22 |
| Transplant outdoors | May 27 – Jun 3 |
| Direct sow outdoors | May 20 – Jun 3 |
| Harvest | Jul 9 – Jul 23 |
| Harvest | Jul 16 – Jul 23 |
Tip: Easy and fast; a classic companion plant that brightens the veg bed and deters some pests.
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 →