Planting Dates for Oklahoma
Oklahoma's warm climate and long growing season support diverse vegetable production. The state has distinct eastern (humid, wooded) and western (dry, open) growing regions.
USDA Zones 6b-8a • 190-230 frost-free days depending on location
Frost Dates in Oklahoma
Average last spring frost and first fall frost dates for Oklahoma cities. Use these to calculate your planting windows.
| City | Last Spring Frost | First Fall Frost | Frost-Free Days | USDA Zone |
|---|---|---|---|---|
| Oklahoma City | Mar 28 | Nov 3 | 220 | 7b |
| Tulsa | Mar 28 | Nov 3 | 220 | 7a |
| Lawton | Mar 22 | Nov 7 | 230 | 7b |
Gardening Tips for Oklahoma
- ✓Eastern Oklahoma gets enough rain for most crops without irrigation.
- ✓Western Oklahoma gardens need irrigation and wind protection.
- ✓Plant spring gardens in March — warm crops can go out by mid-April.
- ✓Fall gardens are highly productive, with cooler temperatures improving crop quality.
What to Plant in Oklahoma
Cold-Hardy Crops (plant early)
These crops tolerate frost and can be planted 2-6 weeks before your last frost date.
30-60 days from sowing
55-70 days from sowing
60-80 days from sowing
50-70 days from sowing
55-80 days from transplant
35-50 days from sowing
20-35 days from sowing
July-August the following year
90-120 days from transplant
70-120 days from planting
50-70 days from sowing
50-60 days from sowing
Warm-Season Crops (plant after last frost)
Start these indoors and transplant after all frost danger has passed.
60-85 days from transplant
60-90 days from transplant
50-65 days from sowing
50-65 days from sowing
45-60 days from sowing
60-100 days from sowing
30-60 days from sowing
Get Exact Planting Dates for Oklahoma
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Frequently Asked Questions
When is the last frost date in Oklahoma?
Last frost dates in Oklahoma vary by city: Oklahoma City (Mar 28), Tulsa (Mar 28), Lawton (Mar 22).
What USDA hardiness zones are in Oklahoma?
Oklahoma spans USDA hardiness zones 6b-8a. Your specific zone determines which perennials survive winter and when to start planting annuals.
What vegetables grow best in Oklahoma?
Hardy crops like peas, kale, spinach, and garlic thrive across Oklahoma. In warmer zones, tomatoes, peppers, and cucumbers do well with proper timing. Use our free calculator for exact planting dates.
How long is the growing season in Oklahoma?
190-230 frost-free days depending on location. Extend your season with cold frames, row covers, and indoor seed starting.
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Calculate exact planting dates based on your location and frost dates.