| Plant | Zone 3b | Zone 3b |
|---|---|---|
| Tomato | Plant outside: May 16 to Jun 27 Start seeds indoors: around Apr 4 | Plant outside: May 16 to Jun 27 Start seeds indoors: around Apr 4 |
| Pepper | Plant outside: May 30 to Jul 11 Start seeds indoors: around Apr 4 | Plant outside: May 30 to Jul 11 Start seeds indoors: around Apr 4 |
| Eggplant | Plant outside: May 30 to Jul 11 Start seeds indoors: around Apr 4 | Plant outside: May 30 to Jul 11 Start seeds indoors: around Apr 4 |
| Cucumber | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 9 | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 9 |
| Zucchini | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 9 | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 9 |
| Winter squash | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 9 | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 9 |
| Pumpkin | Plant outside: May 30 to Jul 11 | Plant outside: May 30 to Jul 11 |
| Watermelon | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 2 | Plant outside: May 30 to Jul 11 Start seeds indoors: around May 2 |
| Okra | Plant outside: May 30 to Jul 11 | Plant outside: May 30 to Jul 11 |
| Sweet potato | Plant outside: May 30 to Jul 11 | Plant outside: May 30 to Jul 11 |
| Green beans | Plant outside: May 16 to Jun 27 | Plant outside: May 16 to Jun 27 |
| Sweet corn | Plant outside: May 16 to Jun 27 | Plant outside: May 16 to Jun 27 |
| Lettuce | Plant outside: Apr 18 to May 2 Start seeds indoors: around Mar 21 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 18 to May 2 Start seeds indoors: around Mar 21 Fall crop: Jul 31 to Aug 28 |
| Spinach | Plant outside: Apr 4 to Apr 18 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 4 to Apr 18 Fall crop: Jul 31 to Aug 28 |
| Kale | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Feb 21 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Feb 21 Fall crop: Jul 31 to Aug 28 |
| Broccoli | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Feb 21 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Feb 21 Fall crop: Jul 31 to Aug 28 |
| Cabbage | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Feb 21 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Feb 21 Fall crop: Jul 31 to Aug 28 |
| Carrot | Plant outside: Apr 18 to May 2 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 18 to May 2 Fall crop: Jul 31 to Aug 28 |
| Beet | Plant outside: Apr 18 to May 2 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 18 to May 2 Fall crop: Jul 31 to Aug 28 |
| Radish | Plant outside: Apr 4 to Apr 18 Fall crop: Jul 31 to Aug 28 | Plant outside: Apr 4 to Apr 18 Fall crop: Jul 31 to Aug 28 |
| Peas | Plant outside: Apr 4 to Apr 18 | Plant outside: Apr 4 to Apr 18 |
| Onion | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Jan 24 | Plant outside: Apr 4 to Apr 18 Start seeds indoors: around Jan 24 |
| Potato | Plant outside: Apr 4 to Apr 18 | Plant outside: Apr 4 to Apr 18 |
| Garlic | Plant cloves: Aug 28 to Oct 9 | Plant cloves: Aug 28 to Oct 9 |
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.