Has anyone evergrown a sweet potatoe plant? If so do you plant it in dirt after the roots start to show?

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How to Grow a Sweet Potato Plant
Use wooden picks to suspend the sweet potato over a clear glass of water with the tip down, having enough water in the glass to cover the bottom of the sweet potato. Keep it in a warm, sunny spot. Soon vines with morning-glory-shaped leaves will appear and climb anywhere you train them. Keep the water level constant (covering just the bottom of the tuber). Change the water occasionally and DO NOT plant in soil. When the individual slips put out four to five leaves, you can snap the new plants off the mother potato.
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Your sweet potato vines can be planted outside in late May to produce sweet potatoes that can be dug and eaten in the fall. http://www.urbanext.uiuc.edu/gpe/case5/c...
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Transplant the vine to the vegetable garden after the last frost in your area.
Sweet potatoes grow well in full sunlight.
Never grow sweet potatoes in the same place two years in a row. Crop rotation is essential to healthy sweet potatoes.
After transplanting, water them for the first few days Unless you're in an area of drought, you can ignore them until you harvest them just before the first frost.
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Set the plants 12 to 18 inches apart, preferably on a wide, raised ridge about 8 inches high. A ridge not only dries better in the spring but also warms earlier than an unridged area. Black plastic mulch can be a good way to speed early season growth by capturing and storing more of the sun’s heat in the soil under the plastic cover. Because the vines of spreading varieties need a great deal of space, allow at least 3 to 4 feet between rows.
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