When to Plant Beans (Green/Snap) in Oklahoma
Easy, productive, and they even improve your soil by fixing nitrogen. A perfect crop for beginners.
The Short Answer
Oklahoma Frost Dates
Your planting dates depend on which part of Oklahoma you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Northern Oklahoma | 6b, 7a | Apr 5 - Apr 20 | Oct 15 - Nov 1 |
| Central Oklahoma | 7a, 7b | Mar 25 - Apr 10 | Oct 25 - Nov 10 |
| Southern Oklahoma | 7b | Mar 15 - Apr 1 | Nov 1 - Nov 15 |
Beans (Green/Snap) Planting Schedule for Oklahoma
Northern Oklahoma (Zones 6b, 7a)
Average last frost: Apr 5 - Apr 20 · Average first frost: Oct 15 - Nov 1
Central Oklahoma (Zones 7a, 7b)
Average last frost: Mar 25 - Apr 10 · Average first frost: Oct 25 - Nov 10
Southern Oklahoma (Zones 7b)
Average last frost: Mar 15 - Apr 1 · Average first frost: Nov 1 - Nov 15
Growing Beans (Green/Snap) in Oklahoma
Beans (Green/Snap) in Oklahoma's Climate
Beans grow fast in warm climates, but extreme heat above 95°F causes blossom drop. Time spring plantings to harvest before July's worst heat, or plant a fall crop in August. Southern peas (black-eyed peas, crowder peas) are technically beans and handle your summer heat far better than snap beans — grow them when regular beans struggle.
Soil Considerations for Oklahoma
Red clay soils common. Alkaline in west. Rich prairie soils in east. Wind erosion in western panhandle. Make sure soil has warmed to at least 60°F before planting beans (green/snap) outside.
Oklahoma Climate & Growing Season
Hot summers. Severe thunderstorms and tornado risk. Good growing season length. Windy — windbreaks help gardens. Beans (Green/Snap) cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.
Growing season length varies across Oklahoma: Northern Oklahoma (6b, 7a) has a last frost around Apr 5 - Apr 20, while Southern Oklahoma (7b) sees frost end around Mar 15 - Apr 1. This difference matters for beans (green/snap) — transplant timing shifts by several weeks across the state.
Growing Tips
Direct sow only — beans don't transplant well. Inoculate seeds with rhizobium for better nitrogen fixation.
Companion Planting
Plant beans (green/snap) alongside these companions for better growth:
Keep beans (green/snap) away from:
The Bottom Line
Last reviewed: March 29, 2026