I sincerely hope you are not trying to grow this invasive, noxious weed. It is listed as a noxious weed in many eastern US states. In many instances, it is illegal to import, interstate transport and cultivate plants on the state noxious weed list. I urge you and anyone else reading this post to visit the link listed below and read about how destructive this species is.

ECOLOGICAL THREAT

Mile-a-minute weed grows rapidly, scrambling over shrubs and other vegetation, blocking the foliage of covered plants from available light, and reducing their ability to photosynthesize, which stresses and weakens them. In addition, the weight and pressure of the vine causes distortion of stems and branches of covered plants. If left unchecked, reduced photosynthesis can kill a plant. Large infestations of mile-a-minute weed eventually reduce native plant species in natural areas. Small populations of extremely rare plants may be eliminated entirely. Because it can smother tree seedlings, mile-a-minute weed has a negative effect on Christmas tree farms, forestry operations on pine plantations and reforestation of natural areas. It has the potential to be a problem to nursery and horticulture crops that are not regularly tilled as a cultivation practice.

http://www.nps.gov/plants/alien/fact/pepe1.htm