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Fall Planting Seed Potatoes
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Seed Potatoes For Fall Planting
Fall Planted Potato Crop Culture:
Light: Full sun
Soil: Well-drained
Fertility: Medium-rich
pH: 5.0 to 6.5
Moisture: Uniform moisture
Spacing: Place seed pieces 12" apart in rows 24-36" apart
Potatoes are not roots but specialized underground storage stems called “tubers.” Maximum tuber formation occurs at soil temperatures between 60 and 70 degrees Fahrenheit. The tubers fail to form when the soil temperature exceeds 80 degrees Fahrenheit. This can make it difficult for Southern gardeners to bring in a successful traditional spring-planted/summer harvested potato crop.
In USDA zones 8-10 it is possible to plant potatoes in late summer for an autumn harvest, or even in late autumn in largely frost-free climates. In some of the hotter states, this is the best time of year to grow potatoes, and possibly the only opportunity for some Southern gardeners whose springtime temperatures get too hot too quickly for a reliable spring/summer spring crop.
Tubers about the size of eggs, or "one drops", are preferred and need no preparation for planting
Use seed potatoes that are double certified Virus Free and Organic. Many potatoes sold in grocery stores have been treated to prevent sprouting in storage and will not sprout well and, even if they do sprout, will not produce good yields. Potatoes have a rest period that must be broken before the seed pieces will sprout. Cool or extremely warm temperatures can break the rest period and allow potatoes to sprout. Plant certified seed potatoes that have been properly stored to induce sprouting. For fall planting, it is best to pre-spout the seed potatoes before planting. This can easily be achieved by placing the tubers in a semi-bright (not in full sun) location that is about 65-75 degrees Fahrenheit for a few days. Don't worry if the tubers begin to look shriveled - that is just the tuber feeding the newly emerging sprouts.
Varieties available for fall planting include Red Lady seed potatoes, Red Norland, Red Lasoda, All Blue seed potatoes, Yukon Gold and German Butterball seed potatoes.