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Earthy. Fresh. Richly flavored. Dug-from-the-garden potatoes delight taste buds in ways grocery store spuds can only dream of doing. Add the benefits of oodles of vitamins, minerals and antioxidants, and these little darlings are as good for you as they are delicious. Plus colorful - who wouldn't love purple potato soup, pink potato chips or roasted rosy fingerlings with snipped rosemary?
Potato plants need full sun to grow strongly and produce abundantly. Scout out a sunny site that drains well, where the soil is light and loose (or where it can be lightened with the addition of compost, leaf mold, coir or similar organic amendements.) While potatoes love slightly acidic soil (pH 5.0-7.0) they are pretty adaptable and produce a nice crop in a range of soil and climate conditions.
Dig soil to about a foot deep to loosen and surface any weed seeds. Pull existing weeds; potatoes do best with little competition for moisture and nutrients.
Potatoes can be planted in the early spring but they won't begin to grow until the soil temperature warms to 45 degrees. Resist the temptation to jump the gun and plant in cold, wet soil. If a late frost is predicted after your potatoes have been planted and are sprouting, cover the plants with a frost blanket, light tarp or bed sheet.
Dig straight trenches 2 to 3 feet apart and 7-8" deep. Drop a seed potato into the trench about every 12-15". Add soil to the trench so potatoes are covered with about 4 -6".
As the potato plants grow, add back more soil, eventually filling the trench. Potato plants sprout roots along the portions of their stems that are covered with soil and these additional roots produce more potato tubers.
Potatoes produce the best crops with a steady supply of moisture, about 1-2" of rain or irrigation per week. During flowering and for 2-3 weeks after, water is important; the plants are setting tubers at this stage. Also, water deeply during dry spells.
Keep weeds pulled from around your potato plants.
When the potatoes are ready to harvest, the plant foliage will begin to turn yellow and die back. At this point, stop providing any supplemental water. A little dryness now helps the potatoes cure.
To harvest, dig gently around the potato plants and use your hands to find the tubers. Let the potatoes dry, unwashed, for 2 to 3 days on newspaper sheets in a well ventilated garage, breezeway or on a covered porch. This allows the tuber skins to dry a bit and improves storage life. Any potatoes that were nicked or cut during harvest should be eaten right away rather than stored for later.
Light: Full sun
Soil: Average soil
Depth: Cover with 1-2” of soil
Water: Average moisture
Uses: Plant in garden or containers
Tip: Colorful potaotes are fun and healthier (more antioxidants and phytonutrients)
They Start Out Looking Like This:
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