When to Plant Potatoes in Massachusetts
Incredibly satisfying to grow. There's nothing quite like digging up your own potatoes — it's like buried treasure.
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 |
Potatoes 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 Potatoes in Massachusetts
Potatoes in Massachusetts's Climate
Plant seed potatoes 2-3 weeks before your last frost when soil reaches 45°F. Your varied soils all grow potatoes, though clay soils produce rougher-skinned tubers than sandy loams. Hill soil around stems as they grow. Watch for late blight during humid summers — Pennsylvania and the mid-Atlantic are historically late blight territory.
Soil Considerations for Massachusetts
Rocky, acidic New England soils. Glacial deposits. Raised beds popular. Amend heavily with compost. Loose, well-drained soil is especially important for potatoes since the edible portion grows underground. If your soil is heavy clay, consider raised beds.
Massachusetts Climate & Growing Season
Four seasons. Maritime influence moderates coastal areas. Cold winters. Good growing season with adequate moisture.
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 potatoes — adjust your planting dates to match your specific region.
Growing Tips
Plant seed potatoes (not grocery store potatoes) 2-3 weeks before last frost. Hill soil around stems as they grow to increase yield.
Companion Planting
Plant potatoes alongside these companions for better growth:
Keep potatoes away from:
The Bottom Line
Last reviewed: March 29, 2026