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My candidate for a very troublesome vine in zone 5a recently offered at garden centers:
Ampelopsis brevipedunculata 'Elegans'
Common Name: Porcelain Berry
It seeds prolifically. I failed to do my homework when purchasing this plant. I recognized my mistake in the second spring ('05) and have eradicated the vine using VineX. I tried the method recommended by the manufacturer to a trimmed vine first. It had no effect. Then I cut the vine off six inches above the ground, and within seconds applied the produt to the fresh cut surface. Then I coated all the remaining stems and covered with a clear plastic bag. I waited one month. It did not resprout. Then I dug up the roots. You would not believe how much this plant put out in roots in one year: over 4ft away from the main trunk(s)! I had to ask permission of my neighbors to enter their property so that I could remove it there as well. Luckily they were obliging. I pulled seedlings the entire season last year and will have to be vigilant this year as well. My neighbors are on the lookout too. This was sandy loam, full sun ph6.5 fairly moist. Please dont plant this vine. It has the potential to cause great harm. It grew about 15 feet in its first year! The kudzu of the north.
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