Conditions for Curing Sweet Potatoes Curing sweet potatoes requires a warm, humid environment for a period of four days to two weeks. The foliage contains more vitamin C and folate than the roots. A growing season shorter than 120 days is simply not long enough for any variety. Is your location still too cold for growing sweet potatoes? You can achieve this several ways. Insert skewers around the circumference of the tuber, near the middle. Suspend in a mason jar of at least a quart size and fill the jar with water. Because sweet potatoes simply cannot withstand frost, northern gardeners must be vigilant of the weather. Reputable companies obtain plants from tissue cultures to avoid parasites and diseases, selling a clean specimen to customers. After two weeks of curing, sweet potatoes are best stored in cool, dark areas with temperatures between 55F and 60F and humidity at 85-90%. Fold flaps back around the stems and tack down with rocks or landscape pins. Deep purple stems sprout leaves of dark green tinged with an aubergine hue. Once the vines are well rooted, plant in loose, moist soil. America’s favorite candied root vegetable has an ancient history of warding off famine. Sweet potatoes vs. potatoes. Smaller containers result in small, cramped roots. transporting the packed sweet potatoes at ambient conditions to the port to allow for additional curing. Developed from a mutation of Beauregard, it bears the same benefits of heavy yields within short seasons. Slips are available through many online seed suppliers. Toka Toka Gold: Also known as Golden Kumara, this New Zealand variety has yellow skin and yellow flesh streaked with orange. Judge tuber maturity by the variety you planted and time spent in the ground. Royal purple tubers grow long and thin without becoming rootbound. Keep soil moist but not wet. Insert the cut end directly into a large mason jar of water, using a barrier at the lip to keep the cutting suspended. This variety is white-skinned, with lavender flesh streaked with stunning purple. Put your sweet potatoes in a box or bucket and place it in a small space, such as a pantry or closet. Most sweet potato slips and plants may not be shipped until April to avoid cold damage. Ignore advice about leaves dying back, because these are not “Irish” potatoes. The important thing is that the sweet potatoes get enough warmth because this is essential for the curing process. The ideal condition to cure sweet potatoes is a 29C (85F) degree room with 85% humidity. Option #1: Buy sweet potatoes from your local grocery store. Leaves and vines are eaten as a vegetable in West Africa and Taiwan. Locating slips may be difficult. Sweet potatoes entered China in 1594 in response to crop failure. Then the area is kept at about 90% humidity. How to Cure Sweet Potatoes. Western markets have tagged some sweet potatoes with the deceptive name “yams” to differentiate the southern crops from northern varieties. Within a few weeks root buds will form under the water and slips will sprout on top. Keep plants in a greenhouse through the entire growing season. We cover how to make your own slips, plant, and harvest sweet potatoes. Precooling is then done in the port and the cold chain is introduced to reduce quality loss. If the plant makes it safely back to your home state, you could unleash parasites into your local soil. Pull the plant straight up. Your email address will not be published. Though they are rarely grown as a staple crop above zone 9, they can still provide a unique and satisfying addition to your table. In zones 5 to 8, cover soil with clear or black plastic a few weeks before planting outside. Ideally, … Okinawan: Tubers can be found in Asian markets, but it’s debatable whether those are organic. Vine cuttings easily root in water or moist soil. To make sure, place a towel over them to protect them additionally. 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