When to Plant Lima Bean in Oklahoma
Direct Sow Outdoors
Sunday, April 5, 2026
State
Oklahoma
USDA Zones
6b, 7a, 7b, 8a
Avg Last Frost
Sunday, April 5, 2026
Cities Covered
583
Oklahoma Planting Schedule by Zone
Oklahoma spans 4 zones — find yours below for the most accurate dates.
| Zone | Last Frost | Direct Sow |
|---|---|---|
| 6b | Wednesday, April 15, 2026 | Wednesday, April 15, 2026 |
| 7a | Friday, April 10, 2026 | Friday, April 10, 2026 |
| 7b | Sunday, April 5, 2026 | Sunday, April 5, 2026 |
| 8a | Friday, March 20, 2026 | Friday, March 20, 2026 |
Dates based on average last frost. Check your local forecast before planting.
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Growing Lima Bean in Oklahoma: Complete Guide
Lima Bean (Phaseolus lunatus) is a crop that grows best when sown directly in the garden. In Oklahoma, the right time to direct sow is around Sunday, April 5, 2026, once soil temperatures are consistently warm enough for germination.
Because Oklahoma stretches across 4 USDA hardiness zones (6b, 7a, 7b, 8a), planting windows can shift by as much as two to four weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.
With 75 days to maturity, Lima Bean fits comfortably within Oklahoma's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.
Lima Bean requires full sun (6-8 hours) and regular (1 inch/week) moisture. Most of Oklahoma receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.
For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Oklahoma.
Frequently Asked Questions
When should I plant Lima Bean in Oklahoma?
In Oklahoma, direct sow Lima Bean outdoors around Sunday, April 5, 2026. Oklahoma spans zones 6b–8a, so gardeners in warmer zones can plant earlier.
What is the last frost date in Oklahoma?
Oklahoma spans 4 USDA zones (6b, 7a, 7b, 8a), so last frost dates vary by region. Adams, Balko, Beaver (6b) sees frost until around Wednesday, April 15, 2026, while Dougherty, Ardmore, Countyline (8a) is frost-free much earlier.
How long does Lima Bean take to grow in Oklahoma?
Lima Bean takes about 75 days from transplant (or direct sow) to harvest. In Oklahoma's longer-season zones, a second planting in late summer may be possible.
What USDA zones does Oklahoma cover for Lima Bean?
Oklahoma includes zones 6b, 7a, 7b, 8a. Lima Bean grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.
Find Precise Dates for Your City
Select a city for exact planting dates based on local frost records.