When to Plant Peppers in Michigan
From sweet bells to fiery habaneros, peppers love heat and reward patience with prolific harvests.
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 |
Peppers 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 Peppers in Michigan
State-Specific Growing Tips
Start pepper seeds indoors 8-10 weeks before your last frost — that's as early as late February in southern Michigan. Use a heat mat for germination (essential, not optional, for peppers in Michigan). Harden off carefully and don't transplant until nighttime temperatures are consistently above 55°F — often late May to early June. Black plastic mulch, wall-of-water protectors, and south-facing planting locations all help accumulate the heat units peppers need. Michigan's sandy western soils warm faster than the clay soils in the southeast, giving lakeshore gardeners a natural advantage for heat-loving crops.
Recommended Varieties for Michigan
Short-season varieties are key. Ace, King of the North, and Early Sunsation mature in 60-70 days. For hot peppers, try Early Jalapeño and Hungarian Wax. Avoid bell pepper varieties requiring 80+ days — they often fail to fully ripen to red in northern Michigan. Michigan State University Extension suggests growing peppers in containers that can be moved to sheltered locations during early-season cold snaps.
Common Challenges in Michigan
Cool June nights cause blossom drop — the most frustrating pepper problem in Michigan. Row covers held up on hoops can raise nighttime temperatures enough to prevent this. Aphids and flea beetles are common early-season pests. In the UP and northern Lower Michigan, the growing season may simply be too short for full-size bell peppers — focus on hot peppers and small-fruited varieties that mature faster.
Growing Tips
Start seeds early — peppers are slow to germinate. Wait until nights are consistently above 55°F before transplanting.
Companion Planting
Plant peppers alongside these companions for better growth:
Keep peppers away from:
The Bottom Line
Last reviewed: March 29, 2026