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Q.My Redbud Tree Is Very Near A Locust Tree And Is Really Struggling. Do Locust Trees Cause Problems For Other Trees?

Zone Ithaca, NY 14850 | Anonymous added on May 15, 2022 | Answered

I have a redbud tree and two crepe myrtle shrubs planted near, or under, the spread of some old mature locust trees. Is the locust causing damage?

A.Answers to this queston: Add Answer
GKH_Susan
Certified GKH Gardening Expert
Answered on May 19, 2022

Black locust has deep roots that spread and can cause problems for other plants. Some studies also suggest it gives off chemicals that are detrimental to other plants. Also, your trees may not be getting enough sun.

https://mbgna.umich.edu/invasive-of-the-week-black-locust/#:~:text=Some%20studies%20suggest%20that%20black,of%20other%20plants%20(allelopathy)
https://www.gardeningknowhow.com/ornamental/trees/locust/growing-black-locust-trees.htm
https://www.gardeningknowhow.com/ornamental/trees/locust/honey-locust-information.htm

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