The Q&A Archives: Invasive plants

Question: My neighbor had a vine (orange trumpet shaped flowers) growing on an arbor that reached over to my yard. She has since cut the thing down but it appears it took hold on the side of my house, literally. It appears the thing is growing under my siding, from soil line to the roof eaves. I've tried spraying again and again with Roundup, but it keeps coming back. How do I kill this thing for good without removing the siding and who knows what else?
Jo Ann

Answer: Round Up should take care of the plant so I'm wondering if new seedlings are popping up week after week. In any event, digging the roots of the trumpet vine out will help stop it. Any roots left will attempt to sprout and as long as you keep cutting the new sprouts down, the roots will eventually run out of energy and stop sending up new sprouts. For right now, I think I'd cut the stems of the plants at ground level and paint the cut ends with full strength Round Up. The herbicide should be transported up the stems and down into the roots and kill them all. Wait a week or so and then clear the ground near the foundation, digging the roots out as you go. With perserverence you should be able to eliminate the pesky vines.

Good luck with your project!

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