When to plant pole beans in Pennsylvania
Pennsylvania’s average last spring frost is May 1, and the first fall frost typically arrives around October 10 — about 162 frost-free days (USDA zones 5a, 5b, 6a, 6b, 7a, 7b). Pole Bean needs 60–70 days to mature, which fits comfortably within Pennsylvania's growing season.
Pennsylvania covers a wide range of climates, so your exact frost dates may differ from the state average by two weeks or more. For dates tuned to your town, use the calendar generator.
When to plant pole beans in Pennsylvania: the short answer
For a spring planting, sow May 3 – May 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 Pennsylvania, 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 (May 3 – May 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 Jul 7 – Jul 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 Pennsylvania’s average frost dates. More in the full pole bean growing guide.
Pole Bean planting dates by USDA zone in Pennsylvania
Pennsylvania spans USDA zones 5a, 5b, 6a, 6b, 7a, 7b. 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 |
|---|---|---|
| Pennsylvania (this page) | May 1 | May 3 – May 22 |
| New Jersey | April 20 | Apr 22 – May 11 |
| Delaware | April 14 | Apr 16 – May 5 |
| Maryland | April 14 | Apr 16 – May 5 |
| District of Columbia | April 10 | Apr 12 – May 1 |
| Virginia | April 15 | Apr 17 – May 6 |
| West Virginia | May 5 | May 7 – May 26 |
Questions gardeners in Pennsylvania ask
When is the best time to plant pole beans in Pennsylvania?
Sow pole beans in Pennsylvania between May 3 and May 22. That timing is set by Pennsylvania's average last spring frost of May 1; Pennsylvania spans several climates, so cooler and higher parts of the state run later.
What is the latest I can plant pole beans in Pennsylvania?
About August 11. Pole beans need at least 60 days to mature, and frost around October 10 ends the season, so later plantings risk being cut short.
When will pole beans planted in Pennsylvania be ready to harvest?
Planted on time, pole beans are usually ready from about July 7 to July 17, 60-70 days after sowing.
When is the last frost in Pennsylvania?
On average around May 1, with the first fall frost around October 10 - about 162 frost-free days. Your town may differ by two weeks or more.