When to plant in Oklahoma
Most of Oklahoma sees its last spring frost between Mar 28 and Apr 11, and its first fall frost between Oct 27 and Nov 6. The middle of the state is around April 3 and November 2: that's what the dates below use.
Hardiness zones in Oklahoma: 6b (2%), 7a (24%), 7b (60%), 8a (14%).
Planting dates for common crops
| Crop | Start indoors | Plant outside | Harvest | Plant for fall |
|---|---|---|---|---|
| Tomato | Mar 2 | Apr 20 – May 4 | Jun 29 – Sep 21 | — |
| Pepper | Feb 16 | Apr 20 – May 4 | Jul 4 – Sep 26 | — |
| Cucumber | — | Apr 20 – May 4 | Jun 14 – Aug 2 | — |
| Zucchini / Summer squash | — | Apr 20 – May 4 | Jun 9 – Aug 18 | — |
| Winter squash | — | Apr 20 – May 4 | Jul 24 – Aug 28 | — |
| Green beans (bush) | — | Apr 20 – May 4 | Jun 14 – Jul 26 | — |
| Peas | — | Feb 20 – Mar 6 | Apr 21 – May 26 | Aug 13 – Aug 27 |
| Sweet corn | — | Apr 20 – May 4 | Jul 4 – Aug 1 | — |
| Lettuce | — | Mar 6 – Mar 20 | Apr 20 – Jun 1 | Sep 4 – Sep 18 |
| Spinach | — | Feb 20 – Mar 6 | Apr 1 – May 13 | Sep 23 – Oct 7 |
| Kale | Jan 23 | Mar 6 – Mar 20 | Apr 30 – Jul 23 | Sep 22 – Oct 6 |
| Broccoli | Jan 30 | Mar 13 – Mar 27 | May 12 – Jun 16 | Aug 27 – Sep 10 |
| Cabbage | Jan 23 | Mar 6 – Mar 20 | May 15 – Jun 19 | Aug 24 – Sep 7 |
| Carrot | — | Mar 13 – Mar 27 | May 22 – Jul 3 | Aug 24 – Sep 7 |
| Beet | — | Mar 13 – Mar 27 | May 7 – Jun 18 | Sep 1 – Sep 15 |
| Radish | — | Feb 27 – Mar 13 | Mar 24 – Apr 21 | Sep 24 – Oct 8 |
| Onion (sets) | — | Feb 27 – Mar 13 | Jun 7 – Jul 12 | — |
| Garlic | — | Oct 26 – Nov 16 (fall) | May 29 – Jun 19 next year | — |
| Potato | — | Mar 13 – Mar 27 | Jun 11 – Jul 16 | — |
| Sweet potato | Mar 13 | Apr 24 – May 8 | Aug 2 – Aug 30 | — |
| Watermelon | — | Apr 24 – May 8 | Jul 18 – Aug 22 | — |
| Basil | Mar 9 | Apr 20 – May 4 | May 20 – Aug 26 | — |
| Strawberry (June-bearing) | — | Mar 13 – Mar 27 | May 1 – May 29 (once established) | — |
| Sunflower | — | Apr 20 – May 4 | Jul 9 – Aug 13 | — |
Dates for a typical spot in Oklahoma. 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 Oklahoma
| Place | Zone | Last frost | First frost |
|---|---|---|---|
| Oklahoma City | 7b | Apr 2 | Nov 5 |
| Tulsa | 7b | Mar 30 | Nov 4 |
| Norman | 7b | Apr 3 | Nov 5 |
| Enid | 7a | Apr 10 | Oct 29 |
| Lawton | 7b | Mar 26 | Nov 7 |
| Stillwater | 7a | Apr 5 | Oct 30 |
| Bartlesville | 7a | Apr 11 | Oct 24 |
| Broken Arrow | 7b | Apr 1 | Nov 1 |
| Edmond | 7b | Apr 10 | Nov 4 |
| Ardmore | 8a | Mar 21 | Nov 8 |
Average dates from the nearest NOAA weather stations (1991–2020). Click a place for its full planting calendar.