potato plants

When To Plant Potatoes In Mississippi

Growing potatoes in Mississippi can be a great way to enjoy fresh, delicious potatoes year-round. Potatoes are a hardy crop that grows well in Mississippi’s warm climate and can be harvested in as little as 75 days. The most important factor when growing potatoes in Mississippi is soil preparation. Potatoes require well-drained soil with plenty of organic matter and a slightly acidic pH of 5.5-6.5.

For best results, it is recommended to use certified, disease-free seed potatoes and plant them in trenches about 8 inches deep. Once the potatoes are planted, be sure to give them plenty of water, but avoid over-watering as this can lead to root rot and other diseases. With proper soil preparation, regular watering, and plenty of sunlight, you should be able to harvest healthy potatoes in no time.

Mississippi’s Hardiness Zones And Climate

Zone 7 of Mississippi has a humid subtropical climate, characterized by hot, humid summers and mild, wet winters. Summers are long, with temperatures reaching the high 80s and low 90s, while winters are mild and damp, with temperatures rarely dropping below freezing. Rainfall is abundant and evenly spread throughout the year, with snowfall only occurring at higher elevations.

Zone 8 of Mississippi has a similar climate to zone 7, however, temperatures are slightly warmer in the summer months and slightly cooler in the winter months. Summers are hot and humid, with temperatures reaching the upper 80s and lower 90s. Winters are mild and damp, with temperatures rarely dropping below freezing. Rainfall is plentiful and evenly spread throughout the year, with snowfall occurring only at higher elevations.

Zone 9 of Mississippi has a humid subtropical climate, characterized by hot, humid summers and mild, wet winters. Summers are long, with temperatures reaching the high 80s and low 90s, while winters are mild and damp, with temperatures rarely dropping below freezing. Rainfall is abundant and evenly spread throughout the year, with snowfall occurring only at higher elevations.

Different varieties of seed potatoes

When selecting seed potatoes for growing in Mississippi, 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 Mississippi include:

  1. Russet Potatoes: 85-95 days
  2. Yukon Gold Potatoes: 90-110 days
  3. Red Potatoes: 80-90 days
  4. Purple Potatoes: 90-110 days
  5. Fingerling Potatoes: 90-120 days
  6. Sweet Potatoes: 90-120 days
  7. White Potatoes: 90-100 days
  8. All-Blue Potatoes: 95-105 days
  9. Yellow Finn Potatoes: 85-95 days
  10. Kennebec Potatoes: 85-95 days

When To Plant Potatoes In Mississippi

In Mississippi, potatoes should be planted in late February through mid-March. Planting in late February will allow for potatoes to be harvested in late May to early June while planting in mid-March will allow for potatoes to be harvested in late June to early July. Those planting dates are:

  • Zone 7: Around March 24th
  • Zone 8: Around March 14th
  • Zone 9: Around February 14th

How To Plant Potatoes In Mississippi

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 Mississippi

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.

Cody Medina
Small Scale Farmer
Hi there! I'm Cody, a staff writer here at The Garden Magazine and a small-scale farmer living in Oregon. I've been gardening most of my life and now live on a quarter-acre farmstead with chickens, ducks, and a big garden.