When to Plant Sweet Potatoes in Michigan
In a typical Michigan location, plant outdoors May 14 – May 28. Across the state, the outdoor planting window starts as early as May 3 in Port Huron and as late as Jun 2 in Cadillac.
Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.
Sweet Potatoes Planting Dates by City
| City | Plant outdoors |
|---|---|
| Detroit | May 5 – May 19 |
| Grand Rapids | May 20 – Jun 3 |
| Warren | May 5 – May 19 |
| Sterling Heights | May 14 – May 28 |
| Ann Arbor | May 19 – Jun 2 |
| Lansing | May 15 – May 29 |
| Clinton Township | May 14 – May 28 |
| Flint | May 20 – Jun 3 |
| Dearborn | May 11 – May 25 |
| Livonia | May 15 – May 29 |
| Canton | May 8 – May 22 |
| Troy | May 10 – May 24 |
| Westland | May 4 – May 18 |
| Farmington Hills | May 15 – May 29 |
| Kalamazoo | May 12 – May 26 |
| Waterford | May 13 – May 27 |
| Wyoming | May 20 – Jun 3 |
| Shelby | May 10 – May 24 |
| Rochester Hills | May 10 – May 24 |
| Southfield | May 15 – May 29 |
| West Bloomfield Township | May 13 – May 27 |
| Taylor | May 4 – May 18 |
| Pontiac | May 10 – May 24 |
| Saint Clair Shores | May 13 – May 27 |
| Royal Oak | May 5 – May 19 |
| Novi | May 15 – May 29 |
| Dearborn Heights | May 15 – May 29 |
| Battle Creek | May 14 – May 28 |
| Kentwood | May 20 – Jun 3 |
| Redford | May 15 – May 29 |
Showing the 30 most populous of 120 Michigan cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Michigan cities.
Frequently Asked Questions
When should I plant sweet potatoes in Michigan?
In a typical Michigan location, plant outdoors May 14 – May 28. Across the state, the outdoor planting window starts as early as May 3 in Port Huron and as late as Jun 2 in Cadillac.
When is the last frost in Michigan?
The average last spring frost in Michigan ranges from April 19 in Port Huron to May 19 in Cadillac, based on NOAA 1991–2020 climate normals.
How long do sweet potatoes take to grow?
Sweet Potatoes typically take 90–120 days from planting to harvest. Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.
Other Crops in Michigan
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant sweet potatoes in other states