In Oklahoma City, the average last spring frost is Apr 2 and the average first fall frost is Nov 5, a growing season of about 217 days (zone 7b). Start tomatoes indoors around Feb 19 and move them outside from Apr 16. Plant garlic Nov 12 to Nov 19, one to two weeks after the first fall frost.
Oklahoma City at a glance
- Last spring frost
- Apr 2 (average)
- First fall frost
- Nov 5 (average)
- Frost-free season
- About 217 days
- Hardiness zone
- 7b (USDA)
- Weather stations
- Spencer 2ENE Mesonet, OK; Oklahoma City Will Rogers AP, OK; and Norman 2NW Mesonet, OK, 1991 to 2020 normals. GrowSmart's dates are the median of these stations, to within 3 days
An average frost date means frost is still possible after it in about half of years. GrowSmart times tender crops like tomatoes, peppers and basil after this date, not on it.
What to plant in Oklahoma City this month (January)
- Start onions indoors: Jan 22
What to plant in Oklahoma City this month (February)
- Start tomatoes indoors: Feb 19
- Start peppers indoors: Feb 19
- Start eggplant indoors: Feb 19
- Start lettuce indoors: Feb 19
- Start kale indoors: Feb 26
- Start broccoli indoors: Feb 26
- Start cabbage indoors: Feb 26
Coming up in early March: start basil indoors (Mar 5), direct sow spinach (Mar 12), direct sow peas (Mar 12) and direct sow radishes (Mar 12).
What to plant in Oklahoma City this month (March)
- Start basil indoors: Mar 5
- Direct sow spinach: Mar 12
- Direct sow peas: Mar 12
- Direct sow radishes: Mar 12
- Transplant lettuce: Mar 19
- Direct sow carrots: Mar 19
- Start cucumbers indoors: Mar 19
- Start zucchini indoors: Mar 19
- Start winter squash indoors: Mar 19
- Direct sow beets: Mar 26
- Transplant kale: Mar 26
- Transplant broccoli: Mar 26
- Transplant cabbage: Mar 26
- Direct sow potatoes: Mar 26
Coming up in early April: transplant onions (Apr 2), transplant cucumbers (Apr 9), transplant zucchini (Apr 9), transplant winter squash (Apr 9) and direct sow beans (Apr 9).
What to plant in Oklahoma City this month (April)
- Transplant onions: Apr 2
- Transplant cucumbers: Apr 9
- Transplant zucchini: Apr 9
- Transplant winter squash: Apr 9
- Direct sow beans: Apr 9
- Transplant tomatoes: Apr 16
- Transplant peppers: Apr 16
- Transplant eggplant: Apr 16
- Transplant basil: Apr 16
What to plant in Oklahoma City this month (May)
Nothing is scheduled to be sown or planted in Oklahoma City in May. Next up: sow peas for a fall harvest on Aug 27.
What to plant in Oklahoma City this month (June)
Nothing is scheduled to be sown or planted in Oklahoma City in June. Next up: sow peas for a fall harvest on Aug 27.
What to plant in Oklahoma City this month (July)
Nothing is scheduled to be sown or planted in Oklahoma City in July. Next up: sow peas for a fall harvest on Aug 27.
What to plant in Oklahoma City this month (August)
- Sow peas for a fall harvest: Aug 27
- Sow kale for a fall harvest: Aug 27
Coming up in early September: sow lettuce for a fall harvest (Sep 10).
What to plant in Oklahoma City this month (September)
- Sow lettuce for a fall harvest: Sep 10
- Sow spinach for a fall harvest: Sep 17
Coming up in early October: sow radishes for a fall harvest (Oct 1).
What to plant in Oklahoma City this month (October)
- Sow radishes for a fall harvest: Oct 1
Coming up in early November: plant garlic (Nov 12).
What to plant in Oklahoma City this month (November)
- Plant garlic: Nov 12 to Nov 19
What to plant in Oklahoma City this month (December)
Nothing is scheduled to be sown or planted in Oklahoma City in December. Next up: start onions indoors on Jan 22.
Oklahoma City planting calendar
| Crop | Start indoors | Plant outside | Harvest |
|---|---|---|---|
| Tomatoes | Feb 19 | Transplant Apr 16 | From Jul 3 |
| Peppers | Feb 19 | Transplant Apr 16 | From Jun 27 |
| Eggplant | Feb 19 | Transplant Apr 16 | From Jun 30 |
| Basil | Mar 5 | Transplant Apr 16 | From May 28 |
| Onions (from seed) | Jan 22 | Transplant Apr 2 | From Jul 11 |
| Lettuce | Feb 19 | Transplant Mar 19Fall: direct sow Sep 10 | From Apr 28Fall: from Oct 20 |
| Spinach | n/a | Direct sow Mar 12Fall: direct sow Sep 17 | From Apr 21Fall: from Oct 27 |
| Peas | n/a | Direct sow Mar 12Fall: direct sow Aug 27 | From May 11Fall: from Oct 26 |
| Radishes | n/a | Direct sow Mar 12Fall: direct sow Oct 1 | From Apr 6Fall: from Oct 26 |
| Carrots | n/a | Direct sow Mar 19 | From May 28 |
| Beets | n/a | Direct sow Mar 26 | From May 20 |
| Kale | Feb 26 | Transplant Mar 26Fall: direct sow Aug 27 | From May 20Fall: from Oct 21 |
| Broccoli | Feb 26 | Transplant Mar 26 | From May 30 |
| Cabbage | Feb 26 | Transplant Mar 26 | From Jun 4 |
| Cucumbers | Mar 19 | Transplant Apr 9 | From Jun 3 |
| Zucchini | Mar 19 | Transplant Apr 9 | From May 29 |
| Winter squash | Mar 19 | Transplant Apr 9 | From Jul 8 |
| Beans | n/a | Direct sow Apr 9 | From Jun 3 |
| Potatoes | n/a | Direct sow Mar 26 | From Jun 14 |
| Garlic | n/a | Plant cloves Nov 12 to Nov 19 | Around Jun 25 the next year |
Dates are for one planting of each crop, from Oklahoma City's average frost dates. Tomatoes are indeterminate, lettuce is looseleaf and beans are bush beans. Harvest dates are when the first picking is usually ready. Garlic follows University of Minnesota Extension (see below).
Fall planting in Oklahoma City
Plant garlic Nov 12 to Nov 19. That is one to two weeks after Oklahoma City's average first fall frost of Nov 5, the timing University of Minnesota Extension recommends, so the cloves root before winter without sending shoots up. Harvest comes around Jun 25 the following summer.
Shallots: GrowSmart's plan has you plant shallot sets in fall in zone 5 and warmer, and in spring in colder zones.
Cool-season crops GrowSmart schedules for a fall harvest in Oklahoma City:
- Peas: sow Aug 27, ready from about Oct 26
- Kale: sow Aug 27, ready from about Oct 21
- Lettuce: sow Sep 10, ready from about Oct 20
- Spinach: sow Sep 17, ready from about Oct 27
- Radishes: sow Oct 1, ready from about Oct 26
Nearby planting calendars
Oklahoma City planting questions
When is the last frost in Oklahoma City?
The average last spring frost in Oklahoma City is Apr 2, and the average first fall frost is Nov 5, from 1991 to 2020 climate normals at 3 nearby weather stations. Frost is still possible after the spring date in about half of years.
When should I start tomato seeds in Oklahoma City?
Start tomatoes indoors around Feb 19, 8 weeks before moving them outside around Apr 16, which is two weeks after the average last frost.
What can I plant in Oklahoma City in fall?
Garlic goes in Nov 12 to Nov 19. For fall harvests, sow peas and kale around Aug 27, lettuce around Sep 10, spinach around Sep 17 and radishes around Oct 1.