Killing Off an Invasive Plant

By flaflwrgrl
November 30, 2012

If you have an especially invasive plant that is large and you want to get rid of it, you can cut it back to 3 or 4 feet. Drill holes 2 or 3 inches straight down into the cut stems, then pour Roundup into the holes. The plant will take the poison internally and it will kill any suckers as well. You may wish to refill the holes after about 12 hours. Please be sure to cover each filled stem with tin foil secured with a twist tie, so our lizard and insect friends don't get into the poison. I had a Shooting Star Clerodendrum that I had to treat this way. It was sending suckers out 30 feet away!

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Avatar for Even
May 28, 2020 11:18 AM CST
Thread OP

Can roundup be used like this with a Nannyberry Viburnum tree that shoots up new suckers all spring/summer? Would it harm the tree or the evergreen bushes that are growing around the trunk?
Thumb of 2020-05-28/Even/2ddcc1
May 28, 2020 11:36 AM CST
Name: Ann ~Heat zn 9, Sunset
North Fl. (Zone 8b)
Garden Sages Region: Ukraine Native Plants and Wildflowers Xeriscape Organic Gardener I was one of the first 300 contributors to the plant database!
Garden Ideas: Master Level Butterflies Charter ATP Member Plant Identifier Million Pollinator Garden Challenge Dog Lover
I do not know.
I refuse to use Round Up anymore at all, for any reason or in any manner. Haven't used it for years.
I am a strong believer in the simple fact is that what matters in this life is how we treat others. I think that's what living is all about. Not what I've done in my life but how I've treated others. ~~ Sharon Brown
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