When to plant pole beans in Missouri
Missouri’s average last spring frost is April 15, and the first fall frost typically arrives around October 18 — about 186 frost-free days (USDA zones 5b, 6a, 6b, 7a). Pole Bean needs 60–70 days to mature, which fits comfortably within Missouri's growing season.
When to plant pole beans in Missouri: the short answer
For a spring planting, sow Apr 17 – May 6. 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 Missouri, 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 17 – May 6). 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 21 – Jul 1). 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 Missouri’s average frost dates. More in the full pole bean growing guide.
Pole Bean planting dates by USDA zone in Missouri
Missouri spans USDA zones 5b, 6a, 6b, 7a. 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
Questions gardeners in Missouri ask
When is the best time to plant pole beans in Missouri?
Sow pole beans in Missouri between April 17 and May 6. That timing is set by Missouri's average last spring frost of April 15.
What is the latest I can plant pole beans in Missouri?
About August 19. Pole beans need at least 60 days to mature, and frost around October 18 ends the season, so later plantings risk being cut short.
When will pole beans planted in Missouri be ready to harvest?
Planted on time, pole beans are usually ready from about June 21 to July 1, 60-70 days after sowing.
When is the last frost in Missouri?
On average around April 15, with the first fall frost around October 18 - about 186 frost-free days. Your town may differ by two weeks or more.