| Plant | Zone 3b | Zone 3b |
|---|---|---|
| Basil | Plant outside: May 23 to Jun 27 Start seeds indoors: around Apr 11 | Plant outside: May 23 to Jun 27 Start seeds indoors: around Apr 11 |
| Parsley Annual in zone 3 | Plant outside: Apr 18 to May 16 Start seeds indoors: around Feb 7 | Plant outside: Apr 18 to May 16 Start seeds indoors: around Feb 7 |
| Cilantro | Plant outside: Apr 18 to May 16 Fall planting: Aug 7 to Sep 4 | Plant outside: Apr 18 to May 16 Fall planting: Aug 7 to Sep 4 |
| Dill | Plant outside: Apr 18 to May 16 | Plant outside: Apr 18 to May 16 |
| Chives Comes back in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Spearmint Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Rosemary Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Common thyme Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Greek oregano Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Garden sage Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Lemon balm Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| French tarragon Annual in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Lemongrass Annual in zone 3 | Plant outside: May 23 to Jun 27 | Plant outside: May 23 to Jun 27 |
| Bronze fennel Annual in zone 3 | Plant outside: Apr 18 to May 16 | Plant outside: Apr 18 to May 16 |
| German chamomile | Plant outside: Apr 18 to May 16 | Plant outside: Apr 18 to May 16 |
| Stevia Annual in zone 3 | Plant outside: May 23 to Jun 27 | Plant outside: May 23 to Jun 27 |
| Lovage Comes back in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
| Garden sorrel Comes back in zone 3 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 | Spring: May 2 to Jun 27 Fall: Jul 17 to Aug 14 |
Zones measure winter cold, not season length, so your own frost dates can be a week or two off the zone median. Look up your frost dates by ZIP code, or read all about zone 3b.
Hardiness ranges, light and size are typical figures from university extension services and botanic garden plant records; a named variety can differ, so check its tag. Planting dates come from each zone's median frost dates (NOAA 1991 to 2020 climate normals) and the timing rules in how we check.