Ask a Question forum: Roundup poison ivy killer ok to use around established hellebores and hydrangeas

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Jul 17, 2016 6:38 PM CST
Does anyone know if roundup poison ivy killer will hurt my established hellabores or climbing hydrangeas.?
Name: Bob
Vernon N.J. (Zone 6a)
Charter ATP Member Plant Database Moderator I was one of the first 300 contributors to the plant database! Forum moderator Heucheras Echinacea
Hellebores The WITWIT Badge Dog Lover Lover of wildlife (Black bear badge) Region: New Jersey Celebrating Gardening: 2015
Jul 17, 2016 6:47 PM CST
If it is close or growing in those plants I do not think I would risk it. If you do try a paintbrush instead of spraying to make sure does not touch them.
Name: Rick R.
near Minneapolis, MN zone 4a
I was one of the first 300 contributors to the plant database! Garden Sages The WITWIT Badge Garden Photography Region: Minnesota Plant Identifier
Jul 17, 2016 7:30 PM CST
The product used glyphosate and triclopyr to kill. Both of these chemicals are at least as lethal for hellebores and climbing hydrangeas as it is for poison ivy.
Name: Carol Roberts
Huntington Beach, CA (Zone 10b)
Sunset 24
Container Gardener Foliage Fan Annuals
Jul 17, 2016 9:14 PM CST
I have a Round-up sprayer that has a cone on the end of the spray wand. The cone comes down completely over the stuff I want to spray, protecting the surrounding foilage. I did miss once and thought I caught a clematis stem, but I ripped it off the plant right away and no harm done. I'm a lot more careful now, and carry hairclips in my tool bag to get such things out of the way.
Can't complain too loud about how the ball bounces when I'm the one who dropped it.

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