When to Plant Sweet Potatoes in Massachusetts
In a typical Massachusetts location, plant outdoors May 9 – May 23. Across the state, the outdoor planting window starts as early as Apr 18 in Boston and as late as May 24 in North Adams.
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 |
|---|---|
| Boston | Apr 18 – May 2 |
| Worcester | May 7 – May 21 |
| Springfield | May 17 – May 31 |
| Lowell | May 14 – May 28 |
| Cambridge | Apr 18 – May 2 |
| New Bedford | Apr 25 – May 9 |
| Dorchester | May 3 – May 17 |
| Brockton | May 6 – May 20 |
| Fall River | Apr 25 – May 9 |
| Quincy | May 9 – May 23 |
| Lynn | May 9 – May 23 |
| Newton | May 3 – May 17 |
| Somerville | Apr 18 – May 2 |
| Lawrence | Apr 27 – May 11 |
| Framingham | May 10 – May 24 |
| Framingham Center | May 10 – May 24 |
| Waltham | May 12 – May 26 |
| Haverhill | May 15 – May 29 |
| Malden | Apr 18 – May 2 |
| Brookline | May 3 – May 17 |
| Medford | Apr 18 – May 2 |
| Taunton | May 6 – May 20 |
| Chicopee | May 17 – May 31 |
| North Chicopee | May 17 – May 31 |
| Weymouth | May 9 – May 23 |
| Revere | Apr 18 – May 2 |
| Peabody | May 9 – May 23 |
| Methuen | Apr 27 – May 11 |
| South Peabody | May 9 – May 23 |
| Barnstable | May 6 – May 20 |
Showing the 30 most populous of 183 Massachusetts cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Massachusetts cities.
Frequently Asked Questions
When should I plant sweet potatoes in Massachusetts?
In a typical Massachusetts location, plant outdoors May 9 – May 23. Across the state, the outdoor planting window starts as early as Apr 18 in Boston and as late as May 24 in North Adams.
When is the last frost in Massachusetts?
The average last spring frost in Massachusetts ranges from April 4 in Boston to May 10 in North Adams, 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 Massachusetts
- 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