When to plant in Utah
Most of Utah sees its last spring frost between Apr 11 and May 31, and its first fall frost between Sep 21 and Oct 31. The middle of the state is around May 4 and October 12: that's what the dates below use.
Hardiness zones in Utah: 5b (10%), 6a (33%), 6b (17%), 7a (17%), 7b (17%), 8b (3%).
Planting dates for common crops
| Crop | Start indoors | Plant outside | Harvest | Plant for fall |
|---|---|---|---|---|
| Tomato | Apr 8 | May 27 – Jun 10 | Aug 5 – Oct 12 | — |
| Pepper | Mar 25 | May 27 – Jun 10 | Aug 10 – Oct 12 | — |
| Cucumber | — | May 27 – Jun 10 | Jul 21 – Sep 8 | — |
| Zucchini / Summer squash | — | May 27 – Jun 10 | Jul 16 – Sep 24 | — |
| Winter squash | — | May 27 – Jun 10 | Aug 30 – Oct 4 | — |
| Green beans (bush) | — | May 27 – Jun 10 | Jul 21 – Sep 1 | — |
| Peas | — | Mar 23 – Apr 6 | May 22 – Jun 26 | Jul 23 – Aug 6 |
| Sweet corn | — | May 27 – Jun 10 | Aug 10 – Sep 7 | — |
| Lettuce | — | Apr 6 – Apr 20 | May 21 – Jul 2 | Aug 14 – Aug 28 |
| Spinach | — | Mar 23 – Apr 6 | May 2 – Jun 13 | Sep 2 – Sep 16 |
| Kale | Feb 23 | Apr 6 – Apr 20 | May 31 – Aug 23 | Sep 1 – Sep 15 |
| Broccoli | Mar 2 | Apr 13 – Apr 27 | Jun 12 – Jul 17 | Aug 6 – Aug 20 |
| Cabbage | Feb 23 | Apr 6 – Apr 20 | Jun 15 – Jul 20 | Aug 3 – Aug 17 |
| Carrot | — | Apr 13 – Apr 27 | Jun 22 – Aug 3 | Aug 3 – Aug 17 |
| Beet | — | Apr 13 – Apr 27 | Jun 7 – Jul 19 | Aug 11 – Aug 25 |
| Radish | — | Mar 30 – Apr 13 | Apr 24 – May 22 | Sep 3 – Sep 17 |
| Onion (sets) | — | Mar 30 – Apr 13 | Jul 8 – Aug 12 | — |
| Garlic | — | Oct 5 – Oct 26 (fall) | Jun 29 – Jul 20 next year | — |
| Potato | — | Apr 13 – Apr 27 | Jul 12 – Aug 16 | — |
| Sweet potato | Apr 15 | May 27 – Jun 10 | Sep 4 – Oct 2 | — |
| Watermelon | — | May 27 – Jun 10 | Aug 20 – Sep 24 | — |
| Basil | Apr 15 | May 27 – Jun 10 | Jun 26 – Oct 2 | — |
| Strawberry (June-bearing) | — | Apr 13 – Apr 27 | Jun 1 – Jun 29 (once established) | — |
| Sunflower | — | May 27 – Jun 10 | Aug 15 – Sep 19 | — |
Dates for a typical spot in Utah. Colder and higher places plant later, warmer ones earlier: enter your ZIP code for yours, or see the calendar for your zone.
Frost dates around Utah
| Place | Zone | Last frost | First frost |
|---|---|---|---|
| Salt Lake City | 7b | Apr 25 | Oct 18 |
| Ogden | 7a | Apr 21 | Oct 23 |
| Sandy | 7b | Apr 29 | Oct 22 |
| Provo | 7a | Apr 18 | Oct 21 |
| Orem | 7a | Apr 19 | Oct 19 |
| Saint George | 8b | Apr 9 | Nov 10 |
| Clearfield | 7a | Apr 22 | Oct 22 |
| Logan | 6a | Apr 30 | Oct 16 |
| Park City | 5b | May 29 | Sep 25 |
| Bountiful | 6b | Apr 25 | Oct 24 |
Average dates from the nearest NOAA weather stations (1991–2020). Click a place for its full planting calendar.