Regional guide

Oklahoma Fall Vegetable Garden

An Oklahoma fall vegetable guide for OSU Extension's July-through-October planting windows, summer establishment problems, and season-extension cautions.

Climate signals

• OSU Extension describes fall as a strong Oklahoma vegetable season when warm sunny days can be followed by cool humid nights.
• Successful fall gardening starts before fall because seeds and transplants may go into the garden during June, July, August, and September.
• July and August plantings need supplemental irrigation because hot soil, intense light, and rapid drying can prevent uniform seedling stands.
• Tender fall vegetables need harvest before frost unless cold frames or row covers extend the season, while semi-hardy vegetables may continue after several frosts.

Planning notes

• Use July 15 to July 30 for pole beans, pumpkin, and winter squash, July 1 to July 15 for tomato transplants, and July 15 for sweet corn, eggplant, and pepper resets.
• Use August 10 to August 20 for bush beans and cucumbers, while summer squash has the longer July 15 to September 1 window.
• Use August 1 to August 15 for beets and leaf lettuce, July 15 to August 15 for broccoli and carrots, and August 1 to September 1 for collards.
• Use August 15 to October 10 for radish, September 5 to September 25 for spinach, August 1 to September 15 for turnips, and September 10 to October 10 for mustard.
• If sowing into cold frames, plant about two weeks later than the listed dates and keep ventilation and pest checks in the plan.

Catalog crop examples

These catalog entries match crops covered by the regional timing source; variety-specific details remain tied to each seed entry's own source.

• Provider Bush Bean Vegetable · Warm · 50 days
• Golden Bantam Sweet Corn Vegetable · Warm · 80 days
• Marketmore 76 Cucumber Vegetable · Warm · 58 days
• Black Beauty Eggplant Vegetable · Warm · 80 days
• California Wonder Pepper Vegetable · Warm · 72 days
• Small Sugar Pumpkin Vegetable · Warm · 100 days
• Waltham Butternut Squash Vegetable · Warm · 95 days
• Roma Tomato Vegetable · Warm · 76 days
• Detroit Dark Red Beet Vegetable · Cool · 58 days
• Waltham 29 Broccoli Vegetable · Cool · 74 days
• Golden Acre Cabbage Vegetable · Cool · 64 days
• Danvers 126 Carrot Vegetable · Shoulder · 70 days
• Georgia Southern Collards Vegetable · Cool · 65 days
• Black Seeded Simpson Lettuce Vegetable · Cool · 45 days
• Southern Giant Curled Mustard Vegetable · Cool · 45 days
• French Breakfast Radish Vegetable · Cool · 28 days
• Bloomsdale Spinach Vegetable · Cool · 42 days
• Purple Top White Globe Turnip Vegetable · Cool · 55 days

Related regional guides

• Oklahoma Garden Planning Guide OSU Extension all-season Oklahoma garden guide for site selection, crop hardiness, soil temperature, shade, and spring crop windows.

Source: OSU Extension fall gardening