Nandina Bushes
Q.

Preventing new tree growth from roots

Zone Conroe, Texas 77385 (zone 9) | Anonymous added on March 4, 2019 | Answered

I have a nandina plant that is sprouting new nandinas all over my garden. I cut them but they just grow back. I heard of a product that you can apply to the cut that will prevent it from growing again. Unfortunately, I don't know the name of the product and none of my local nurseries know either. Can you help me? The nandinas are coming up all over. Thank you, Mariellen

A.
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MichiganDot
Answered on March 5, 2019

One technic for killing invasive trees and vines is to paint herbicide to a freshly cut stump. Use a child's paintbrush or a foam paintbrush. The herbicide is pulled down to the roots. Some authorities recommend concentrated glyphosate (RoundUp) and some recommend a combination of glyphosate and triclopyr (Weed B Gon, Garlon). Ready-to-use herbicide is too dilute. Nandina is now considered invasive in Texas. You are seeing this in real time. https://dcmga.com/north-texas-gardening/shrubs/nandina/

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