Warm-Season Vegetable

When to Plant Peppers in Oklahoma

From sweet bells to fiery habaneros, peppers love heat and reward patience with prolific harvests.

The Short Answer

In Oklahoma, peppers planting dates vary by region. In Northern Oklahoma, your average last frost is around Apr 5 - Apr 20, while Southern Oklahoma sees its last frost around Mar 15 - Apr 1. Since peppers are frost-sensitive, start seeds indoors 8 weeks before your last frost, then transplant outside 2 weeks after frost danger has passed. Red clay soils common. Alkaline in west. Rich prairie soils in east. Wind erosion in western panhandle.

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

Peppers Planting Schedule for Oklahoma

Northern Oklahoma (Zones 6b, 7a)

Average last frost: Apr 5 - Apr 20 · Average first frost: Oct 15 - Nov 1

Start Seeds Indoors
8 wks before frost
Transplant Outside
2 wks after frost

Central Oklahoma (Zones 7a, 7b)

Average last frost: Mar 25 - Apr 10 · Average first frost: Oct 25 - Nov 10

Start Seeds Indoors
8 wks before frost
Transplant Outside
2 wks after frost

Southern Oklahoma (Zones 7b)

Average last frost: Mar 15 - Apr 1 · Average first frost: Nov 1 - Nov 15

Start Seeds Indoors
8 wks before frost
Transplant Outside
2 wks after frost

Growing Peppers in Oklahoma

Peppers in Oklahoma's Climate

Peppers are stars in warm climates — they thrive in the same heat that stresses other crops. Your long season supports even the longest-maturing hot varieties including habaneros, ghost peppers, and superhots. Peppers produce more prolifically with warm nights, giving southern growers a natural advantage. In the hottest zones, afternoon shade helps during peak summer but isn't strictly necessary — peppers handle heat better than tomatoes.

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 65°F before planting peppers outside.

Oklahoma Climate & Growing Season

Hot summers. Severe thunderstorms and tornado risk. Good growing season length. Windy — windbreaks help gardens. Peppers 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 peppers — transplant timing shifts by several weeks across the state.

Growing Tips

Start seeds early — peppers are slow to germinate. Wait until nights are consistently above 55°F before transplanting.

Companion Planting

Plant peppers alongside these companions for better growth:

Tomatoes Basil Carrots Onions

Keep peppers away from:

Fennel Kohlrabi

The Bottom Line

Peppers can be grown successfully across Oklahoma, but your exact planting dates depend on which region you're in. Northern Oklahoma gardeners should plan around a Apr 5 - Apr 20 last frost, while those in Southern Oklahoma can typically plant earlier. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Peppers Growing Guide National planting guide with all states Oklahoma Planting Calendar All plants for Oklahoma Peppers in Alabama Alabama planting dates Peppers in Alaska Alaska planting dates Peppers in Arizona Arizona planting dates Peppers in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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