My Planting Calendar

What to plant in July in Oklahoma

In Oklahoma (OK), July is the heart of the growing season - about 15 weeks after the last frost (April 1) and 16 weeks before the first (November 1). The state averages 214 frost-free days a year (last frost April 1, first frost November 1; USDA zones 6b, 7a, 7b, 8a).

15 crops have a sowing or planting window this month, including brussels sprouts, rutabaga, broccoli, cabbage, cauliflower, cucumber.

Dates here come from Oklahoma frost dates (last frost Apr 1, first frost Nov 1). For one crop in detail, see when to plant broccoli, cabbage or cauliflower in Oklahoma.

Peak growing seasonSow or plant: 15Start indoors: 0Harvesting: 29

Oklahoma: planting activity through the year

18
53
70
78
27
9
15
31
21
1
2
0
JanFebMarAprMayJunJulAugSepOctNovDec
Frost riskFrost-free: Apr 1 – Nov 1
Bars count the vegetables, herbs and fruit with a sowing or planting window in each month, from the state’s average frost dates. 15 have one in July; the busiest month is April (78).

For fall and winter harvests (8)

Sowings counted back from Oklahoma's first fall frost, so the crop matures before the cold - or, for garlic and similar, planted after it.

CropWhat to doWindowThis month
Brussels SproutsStart transplants for fallJul 2 – Jul 19Jul 2 – Jul 19
RutabagaSow for a fall cropJul 16 – Aug 2Opens Jul 16
BroccoliStart transplants for fallJul 23 – Aug 9Opens Jul 23
CabbageStart transplants for fallJul 23 – Aug 9Opens Jul 23
CauliflowerStart transplants for fallJul 23 – Aug 9Opens Jul 23
CucumberSow for a fall cropJul 30 – Aug 16Opens Jul 30
Fennel (Bulb)Sow for a fall cropJul 30 – Aug 16Opens Jul 30
Zucchini / Summer SquashSow for a fall cropJul 30 – Aug 16Opens Jul 30

Keep sowing (succession)

Repeat sowings of crops already in the ground, for a steady harvest instead of a glut.

Harvesting in July

First harvests expected this month from crops sown or planted on time earlier in the season.

Potato · May 27 – Jul 16Tomato · Jun 7 – Jul 2Sweet Corn · Jun 7 – Jul 17Onion · Jun 9 – Jul 9Shallot · Jun 9 – Jul 9Bell Pepper · Jun 14 – Jul 14Southern Pea (Cowpea) · Jun 14 – Jul 14Brussels Sprouts · Jun 16 – Jul 16Ground Cherry · Jun 17 – Jul 7Sunflower · Jun 17 – Jul 17Shiso (Perilla) · Jun 17 – Jul 7Lima Bean · Jun 19 – Jul 19Edamame (Soybean) · Jun 22 – Jul 17Tomatillo · Jun 22 – Jul 17Chili Pepper · Jun 24 – Jul 24Cantaloupe / Muskmelon · Jun 24 – Jul 14Watermelon · Jun 24 – Jul 24Eggplant · Jun 26 – Jul 16Leek · Jun 26 – Aug 15Winter Squash · Jun 27 – Jul 27Parsnip · Jul 3 – Aug 2Salsify · Jul 6 – Aug 15Pumpkin · Jul 7 – Aug 6Rosemary · Jul 7 – Aug 6Celery · Jul 10 – Aug 19Celeriac · Jul 10 – Jul 30Luffa (Loofah Gourd) · Jul 14 – Sep 12Peanut · Jul 17 – Sep 5Sweet Potato · Jul 21 – Aug 20

Planting dates for popular crops in Oklahoma

Every crop has its own full-year dates for Oklahoma: indoor start, transplant or direct sowing, and harvest.

When to plant broccoli in Oklahoma →When to plant cabbage in Oklahoma →When to plant cauliflower in Oklahoma →When to plant cucumber in Oklahoma →When to plant zucchini in Oklahoma →When to plant tomato in Oklahoma →When to plant lettuce in Oklahoma →When to plant garlic in Oklahoma →Oklahoma frost dates by zone →

Peak growing season: July garden jobs in Oklahoma

  1. Water deeply two or three times a week rather than a little every day - about an inch a week, more in heat. See watering a vegetable garden.
  2. 16 weeks until the average first frost (November 1). Fall crops start now: brussels sprouts, rutabaga, broccoli, cabbage. See the fall and winter garden guide.
  3. Check the undersides of leaves twice a week - catching pests early is most of the battle (pest identification guide).
  4. Harvest often: potato, tomato, sweet corn, onion should be coming in. Picking regularly keeps beans, squash and cucumbers producing.

USDA zone chart for Oklahoma

Oklahoma spans USDA zones 6b, 7a, 7b, 8a. Colder zones, usually higher or further inland, have a later last spring frost and an earlier first fall frost than the state average.

ZoneLast frostFirst frostSeason
Zone 6Apr 15Oct 15185 days
Zone 7Apr 5Oct 25200 days
Zone 8Mar 20Nov 5230 days

Questions gardeners ask

What vegetables can I plant in Oklahoma in July?

15 crops have a window in July: brussels sprouts, rutabaga, broccoli, cabbage, cauliflower, cucumber, fennel (bulb), zucchini / summer squash and more. The tables above give the exact dates for each.

Is it too late to plant tomatoes in Oklahoma in July?

For this year, yes - the tomato windows in Oklahoma have closed. The next step is to start seeds indoors from about February 4.

Is it too late to plant lettuce in Oklahoma in July?

Not too late - it's actually a little early. In Oklahoma the next lettuce window opens around August 27: sow for a fall crop.

When is the first frost in Oklahoma?

The statewide average first fall frost is around November 1 and the last spring frost around April 1. Your town can be a week or two either side - look yours up by ZIP code.

What can I harvest in Oklahoma in July?

From plantings made on time: potato, tomato, sweet corn, onion, shallot, bell pepper, southern pea (cowpea), brussels sprouts, ground cherry, sunflower.

← June in OklahomaAugust in Oklahoma →Full-year Oklahoma planting calendar →Oklahoma frost dates →

What to plant in July in other states

KansasNebraskaNorth DakotaSouth DakotaAlabamaAlaskaArizonaArkansasAll states →

Dates are computed from Oklahoma’s statewide average frost dates (from NOAA/NCEI climate normals) and each crop’s timing in our crop database. Your garden may be a week or two either side - for dates tuned to your ZIP code, use the planting calendar.