When to Plant Beans (Green/Snap) in Michigan
Easy, productive, and they even improve your soil by fixing nitrogen. A perfect crop for beginners.
The Short Answer
Michigan Frost Dates
Your planting dates depend on which part of Michigan you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Upper Peninsula | 4a, 4b, 5a | May 15 - Jun 5 | Sep 10 - Sep 25 |
| Northern Lower Michigan | 5a, 5b | May 10 - May 25 | Sep 20 - Oct 5 |
| Southern Michigan | 5b, 6a, 6b | Apr 25 - May 10 | Oct 1 - Oct 15 |
Beans (Green/Snap) Planting Schedule for Michigan
Upper Peninsula (Zones 4a, 4b, 5a)
Average last frost: May 15 - Jun 5 · Average first frost: Sep 10 - Sep 25
Northern Lower Michigan (Zones 5a, 5b)
Average last frost: May 10 - May 25 · Average first frost: Sep 20 - Oct 5
Southern Michigan (Zones 5b, 6a, 6b)
Average last frost: Apr 25 - May 10 · Average first frost: Oct 1 - Oct 15
Growing Beans (Green/Snap) in Michigan
State-Specific Growing Tips
Direct sow from late May to early June when soil reaches 60°F. Michigan's sandy western soils warm quickly and are naturally well-suited to beans. Southeast Michigan's clay soils need compost but beans handle heavier soil reasonably well. Succession plant bush beans every 2-3 weeks through mid-July. Pole beans need trellising — a tepee of 6-8 foot poles works well and adds vertical interest to the garden. Michigan's moderate summer temperatures are ideal for bean production without the heat stress that southern gardeners face.
Recommended Varieties for Michigan
Provider and Contender for early bush beans. Blue Lake bush and pole for heavy production. Dragon Tongue is a beautiful Dutch wax bean increasingly popular at Michigan farmers markets. For dry beans, Michigan gardeners can grow black beans, navy beans, and kidney beans — varieties that Michigan farms produce commercially.
Common Challenges in Michigan
Mexican bean beetle is common in Michigan. Japanese beetles feed on bean foliage in June-July. Bean anthracnose can appear in cool, wet conditions early in the season. White mold (Sclerotinia) is a concern in Michigan's humid conditions — don't crowd plants and ensure good air circulation.
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