When to plant pole beans in Oklahoma
Oklahoma’s average last spring frost is April 1, and the first fall frost typically arrives around November 1 — about 214 frost-free days (USDA zones 6b, 7a, 7b, 8a). Pole Bean needs 60–70 days to mature, which fits comfortably within Oklahoma's growing season.
When to plant pole beans in Oklahoma: the short answer
For a spring planting, sow Apr 3 – Apr 22. Wait until the soil is at least 60°F and frost is over.
Windows are ~1–2 week bands around each date. Frost dates are a statewide average from NOAA/NCEI normals; your town may differ by two weeks or more. Calendar year 2026.
How to grow pole beans in Oklahoma, step by step
- Prepare the bed. They need at least six to eight hours of direct sun a day and loose soil at least 18 inches deep, with a pH between 6.0 and 7.5. Dig in compost before planting.
- Sow outdoors (Apr 3 – Apr 22). Space plants about 6 inches apart in rows 42 inches apart, sowing seed 1.5 inches deep. It is killed by frost, so nothing goes outside until the danger has passed.
- Water and feed. Give it steady, even moisture, about an inch of water a week from rain or the hose.
- Watch for pests and problems. Pests: Mexican bean beetle, aphids, bean leaf beetle. Diseases and disorders: anthracnose, bacterial blight, bean rust, bean mosaic virus.
- Harvest (from about Jun 7 – Jun 17). Pole Bean takes 60-70 days to reach harvest. One well-tended sowing keeps producing for 6-8 weeks if you pick often. Set the trellis at sowing time.
Figures come from our crop data; dates use Oklahoma’s average frost dates. More in the full pole bean growing guide.
Pole Bean planting dates by USDA zone in Oklahoma
Oklahoma spans USDA zones 6b, 7a, 7b, 8a. Colder zones, usually higher or further inland, have a later last spring frost and an earlier first fall frost than the state average, so the pole bean dates shift with them.
When to plant pole beans in nearby states
| State | Last frost | Sow |
|---|---|---|
| Oklahoma (this page) | April 1 | Apr 3 – Apr 22 |
| North Dakota | May 15 | May 17 – Jun 5 |
| South Dakota | May 10 | May 12 – May 31 |
| Nebraska | April 30 | May 2 – May 21 |
| Kansas | April 15 | Apr 17 – May 6 |
Questions gardeners in Oklahoma ask
When is the best time to plant pole beans in Oklahoma?
Sow pole beans in Oklahoma between April 3 and April 22. That timing is set by Oklahoma's average last spring frost of April 1.
What is the latest I can plant pole beans in Oklahoma?
About September 2. Pole beans need at least 60 days to mature, and frost around November 1 ends the season, so later plantings risk being cut short.
When will pole beans planted in Oklahoma be ready to harvest?
Planted on time, pole beans are usually ready from about June 7 to June 17, 60-70 days after sowing.
When is the last frost in Oklahoma?
On average around April 1, with the first fall frost around November 1 - about 214 frost-free days. Your town may differ by two weeks or more.