Botanical Name: Ipomoea batatas 'Centennial'
Height: Vine to 20 feet.
Spacing: 12 - 15 inches , Row 3 - 4 feet.
Depth: 3 - 4 of stem in the ground of a plant 6 - 9 inch long.
Sun/Shade: Full sun.
Yield: 100 lbs per 100 foot row.
Color: Violet - pale pink.
Foliage: Thick, green, heart-shaped foliage.
Blooms: Late Summer.
Fruit: Deep copper skin, yellow-orange fine grained, soft flesh. Medium-large cylindrical tapered roots.
Flower Form: Seldom produced.
Soil Requirements: Fertile, well-drained sandy loam soli. pH 5.0 - 6.5.
Growth Rate: Rapid in warm soils.
Size: 2 inches.
Comments: Fruit has uniform, medium-large, cylindrical, tapered roots. Dependable high yielder. Excellent keeper. Good quality. Widely adapted. Good in short season areas and in the South. Set plants out 1 - 2 weeks after danger of frost is past. Soil temperature should be 60 degrees F. Mound soil over row as plants grow until the ridge is 8 - 15 inches high. Fertilize before planting and 3 - 4 weeks after. Cultivate to keep vines from rooting where they touch the ground. Harvest is determined by root size, sweet potatoes do not ripen; harvest immediately if nipped by frost in fall. Cure 6 - 8 days at 85 degrees F. and 90% humidity after harvest. Store at 55 - 60 degrees F. and 85% humidity (low humidity causes shriveling). Good keeper.
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