When to Plant Beans (Green/Snap) in Massachusetts
Easy, productive, and they even improve your soil by fixing nitrogen. A perfect crop for beginners.
The Short Answer
Massachusetts Frost Dates
Your planting dates depend on which part of Massachusetts you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Western Massachusetts | 5b, 6a | May 1 - May 20 | Sep 20 - Oct 10 |
| Central Massachusetts | 5b, 6a | May 1 - May 15 | Sep 25 - Oct 10 |
| Coastal/Cape | 6b, 7a | Apr 15 - May 1 | Oct 15 - Nov 1 |
Beans (Green/Snap) Planting Schedule for Massachusetts
Western Massachusetts (Zones 5b, 6a)
Average last frost: May 1 - May 20 · Average first frost: Sep 20 - Oct 10
Central Massachusetts (Zones 5b, 6a)
Average last frost: May 1 - May 15 · Average first frost: Sep 25 - Oct 10
Coastal/Cape (Zones 6b, 7a)
Average last frost: Apr 15 - May 1 · Average first frost: Oct 15 - Nov 1
Growing Beans (Green/Snap) in Massachusetts
Beans (Green/Snap) in Massachusetts's Climate
Your climate is classic bean country. Direct sow from mid-May when soil warms to 60°F. Succession plant bush beans every 2 weeks through mid-July for continuous harvest. Your warm, humid summers are ideal for bean production — just watch for Mexican bean beetle and Japanese beetle, which are common in the mid-Atlantic and Midwest.
Soil Considerations for Massachusetts
Rocky, acidic New England soils. Glacial deposits. Raised beds popular. Amend heavily with compost. Make sure soil has warmed to at least 60°F before planting beans (green/snap) outside.
Massachusetts Climate & Growing Season
Four seasons. Maritime influence moderates coastal areas. Cold winters. Good growing season with adequate moisture. Beans (Green/Snap) cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.
Growing season length varies across Massachusetts: Western Massachusetts (5b, 6a) has a last frost around May 1 - May 20, while Coastal/Cape (6b, 7a) sees frost end around Apr 15 - May 1. This difference matters for beans (green/snap) — transplant timing shifts by several weeks across the state.
Growing Tips
Direct sow only — beans don't transplant well. Inoculate seeds with rhizobium for better nitrogen fixation.
Companion Planting
Plant beans (green/snap) alongside these companions for better growth:
Keep beans (green/snap) away from:
The Bottom Line
Last reviewed: March 29, 2026