All of these sweet potato vines are great in mixed planter boxes where you can combine with complementary blooming plants for an entire summer of beauty. When planted in the landscape, you can plant Blackie and Tri-Color four to six feet apart and let them grow together or plant closer, but they will crowd quickly. Marguerite can be planted on three-foot centers. The key to having a green thumb with sweet potato vines and most of the other spring plants, may be how brown your thumb gets first. If you ever wondered why you are such a good container gardener but fizzle after you get off the porch or patio, it is probably soil preparation.
Container provide the very best in soil climates.
That container with gorgeous flowers has a rich organic potting mix that allows for good drainage and maximum oxygen for roots. We can achieve the same thing in a landscape bed with proper soil preparation. Work 2 to 3 inches of organic material into the bed and rototill to a depth of 10 to 12 inches. A spade for turning the soil also could be used. Start getting your soil prepared as soon as it is dry enough.