Growing potatoes in Massachusetts can be a great way to provide fresh, delicious potatoes for your family. Massachusetts is a great place to grow potatoes due to its temperate climate and rich soil. Potatoes can be planted in the early spring and harvested in late summer or early fall. When planting potatoes in Massachusetts, it is best to choose a variety that is known for growing well in the area, such as Yukon Gold, Red Norland, or Kennebec.
It is also important to choose a location with full sun and well-drained soil. To ensure a successful harvest, it is important to amend the soil with compost and mulch to help retain moisture and regulate soil temperatures. With a little bit of care and attention, you can grow a great crop of potatoes in Massachusetts.
Massachusetts’s Hardiness Zones And Climate
Zone 5a of Massachusetts has a humid continental climate, characterized by hot, humid summers and cold, snowy winters. Average temperatures range from lows of -20°F in the winter to highs of 85°F in the summer. The average snowfall during the winter months is around 40 inches.
Zone 6a of Massachusetts has a humid continental climate, characterized by hot, humid summers and cold, snowy winters. Average temperatures range from lows of -15°F in the winter to highs of 85°F in the summer. The average snowfall during the winter months is around 35 inches.
Zone 6b of Massachusetts has a humid continental climate, characterized by hot, humid summers and cold, snowy winters. Average temperatures range from lows of -10°F in the winter to highs of 85°F in the summer. The average snowfall during the winter months is around 30 inches.
Zone 7a of Massachusetts has a humid continental climate, characterized by hot, humid summers and cold, snowy winters. Average temperatures range from lows of -5°F in the winter to highs of 85°F in the summer. The average snowfall during the winter months is around 25 inches.
Zone 7b of Massachusetts has a humid subtropical climate, characterized by hot, humid summers and cold, wet winters. Average temperatures range from lows of 0°F in the winter to highs of 85°F in the summer. The average snowfall during the winter months is around 20 inches.
Different varieties of seed potatoes
When selecting seed potatoes for growing in Massachusetts, it is important to be mindful of the variety’s days to harvest and the length of time you have before you want to harvest them.
Early-season varieties such as ‘Yukon Gold’ and ‘Red Norland’ have fewer days to harvest and should be planted as soon as possible for harvesting in late summer.
Mid-season varieties such as ‘Russet Burbank’ and ‘Kennebec’ have more days to harvest and should be planted in late April or early May for harvesting in fall.
Late-season varieties such as ‘Cara Russet’ and ‘All Blue’ have the most days to harvest and should be planted in late April or early May for harvesting in early winter. Be sure to select varieties with the right number of days to harvest for your intended harvest date. Some good potato varieties for Massachusetts include:
- Russet Potatoes: 85-95 days
- Yukon Gold Potatoes: 90-110 days
- Red Potatoes: 80-90 days
- Purple Potatoes: 90-110 days
- Fingerling Potatoes: 90-120 days
- Sweet Potatoes: 90-120 days
- White Potatoes: 90-100 days
- All-Blue Potatoes: 95-105 days
- Yellow Finn Potatoes: 85-95 days
- Kennebec Potatoes: 85-95 days
When To Plant Potatoes In Massachusetts
Potatoes should be planted in Massachusetts in late March or early April when the soil temperature reaches 45°F (7°C). The potatoes can be planted earlier if they are started indoors. Planting in late April or early May is also possible, but the potatoes may not have enough time to mature before the first frost in the fall.
- Zone 5: Around April 15th
- Zone 6: Around April 7th
- Zone 7: Around March 24th
How To Plant Potatoes In Massachusetts
Begin the planting process for seed potatoes by tilling the soil to a depth of 8 inches and incorporating organic compost. Once you have done this, find a sunny location that receives at least 8 hours of direct sunlight and place the seed potatoes.
Plant the seed potatoes with the “eyes” facing upward, leaving a distance of 8 to 10 inches in between each. Cover the seed potatoes with a layer of soil that is 3-4 inches thick, and make sure to water them adequately. As the potatoes start to sprout, add more soil to the rows to keep them adequately buried.
Water the potatoes on a regular basis and remove any weeds from the area. For those living in hot and dry climates, you may want to cover the soil around the potatoes with straw, although this is not essential.
Caring For Potato Plants
Caring for potato plants is pretty easy – they’re incredibly hardy and generally no-fuss. Potato plants need full sun and well-drained soil to thrive. They should be watered deeply and regularly, allowing the soil to dry out between waterings.
Fertilizing is also important for optimal growth. Potato plants need a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium. This should be applied every four to six weeks, depending on the soil’s nutrient content.
It is also important to keep the soil evenly moist, as potatoes do not tolerate dry or waterlogged conditions. Mulching around the potato plants can help retain moisture and reduce weeds.
When To Harvest Potatoes In Massachusetts
There are two sure ways to know your potatoes are about ready to harvest! The first is counting backward from your current date to their planting date. Potato varieties have an approximate number of days to harvest, so consult the days to harvest for the particular variety of potatoes you’ve planted. If you aren’t sure, assume it’s around 100 days.
The appearance of your potato plants is another dead giveaway. You will know your potatoes are ready to harvest when the foliage begins to turn yellow and die back. Your plants will go through an entire flowering cycle, which is nice because the flowers are really beautiful.
Allow the soil around the plants to dry before harvesting, but don’t allow it to be dry for too long. Once harvested, inspect the potatoes carefully- they should be firm and free of green or soft spots.
Carefully dig up the potatoes with a garden fork, taking care not to damage the potatoes in the process. Once the potatoes have all been dug up, brush off any excess soil and inspect them for any damage. Discard any potatoes that are damaged, as these are not suitable for long-term storage.
Finally, gently place the potatoes in a cool, dry, and dark area for storage. It is important to only store undamaged potatoes, as damaged potatoes can quickly rot.