Potatoescan be successfully grown in Zone 3 as they have a brusk growing season and are tolerant of stale temperature . Potatoes are planted in early springiness , ordinarily in mid - April , and are planted after the soil has warmed up and the last frost has exit . The soil should be well - enfeeble and plentiful in organic matter . Knowing when to embed potatoes in zone 3 is key to
white potato demand anywhere from 80 to 120 days to reach matureness . During the growing season , spud should be watered regularly and weeds should be hold back under control . At the ending of the originate season , Irish potato can be harvested and salt away for use in the winter .
USDA Hardiness Zone 3 Climate
Before attempting to grow white potato in zone 3 , it ’s crucial to know a short bit more about the mood . USDA hardiness zone 3 is a temperate clime with red-hot summers and cold winters . The average first Robert Lee Frost date is usually around September 30th , and the middling last Robert Lee Frost date is normally around May 15th . This leaves 138 days for grow potatoes .
Temperatures can range from minus 30 to plus 30 degrees Celsius throughout the yr . hurriedness is generally moderate and evenly distributed throughout the class , with snowfall come about in late autumn and former wintertime .
Winters are usually cold and snowy , whereas summer are usually warm and humid . The produce season is more often than not around 120 - 140 sidereal day , and the growing zone is suitable for a diversity of industrial plant and tree .

The Best Seed Potatoes For Zone 3
When selecting semen potatoes for grow in Zone 3 , it is of import to be aware of the variety ’s days to harvest home and the length of time you have before you need to harvest them .
former - season varietiessuch as ‘ Yukon Gold ’ and ‘ Red Norland ’ have fewer days to glean and should be planted as soon as possible for harvest home in former summer .
Mid - season varietiessuch as ‘ Russet Burbank ’ and ‘ Kennebec ’ have more day to harvest and should be planted in late April or other May for harvesting in drop .
Late - season varietiessuch as ‘ Cara Russet ’ and ‘ All Blue ’ have the most days to harvest and should be planted in late April or early May for harvest in early winter . Be sure to select change with the veracious number of days to harvest for your intended harvest home appointment . Some just potato salmagundi for zone 3 admit :
When To Plant Potatoes In Zone 3
If you want to produce a large craw of white potato , it is skillful to get started when the weather condition is nerveless . Plant the Solanum tuberosum 2 - 4 weeks before the last expected frost in the spring , and check that the soil temperature is at least 40 degree Fahrenheit . In zone 3 , the final hoarfrost date is usually around May 15th , meaning you will want to sow your seed potatoes around May 1st .
It is important to consider , however , that your particular microclimate may add some variant to these dates . Before plant seed potatoes , look at the prolonged 2 - calendar week forecast in your surface area . If it seems like freezing weather could hold on beyond May 15th , it ’s estimable to wait .
How To Plant Potatoes In Zone 3
To plant seed potatoes , begin by preparing the land for planting . This can be done by till the soil to a depth of just about 8 inches and adding organic compost to the soil . Once the soil is quick , place the source potatoes in a gay location that receives at least 8 hour of direct sunlight .
The seed potatoes should be engraft with the “ eyes ” facing up and should be space approximately 8 to 10 column inch apart . extend the seed white potato vine with 3 - 4 in of soil , and water them well . Once the potatoes begin to sprout , add more soil to the rows to insure that the potatoes are well covered .
irrigate the potato on a regular basis and keep the field complimentary of weeds .
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 water profoundly and regularly , allowing the soil to dry out between waterings .
Fertilizing is also authoritative for optimum development . spud plants require a balanced fertilizer with equal parts atomic number 7 , Lucifer , and potassium . This should be applied every four to six weeks , depending on the grunge ’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 plant can assist hold wet and lose weight weeds .
When To Harvest Potatoes In Zone 3
There are two sure ways to know your potatoes are aboutready to harvest!The first is counting back from your current particular date to their planting day of the month . Potato mixture have an approximate number of day to glean , so confabulate the Clarence Shepard Day Jr. to reap for the particular variety of potato you ’ve planted . If you are n’t certain , assume it ’s around 100 mean solar day .
The appearance of your potato plants are another dead giveaway . You will bonk your potatoes are ready to reap when the foliation lead off to flex icteric and conk back . Allow the territory around the industrial plant to dry out before harvest home , but do n’t allow it to be dry for too long . Once harvest , inspect the potatoes carefully- they should be firm and destitute of immature or soft spots .