Q.

Black Walnut

Zone 18062 | desbdmail added on June 8, 2018 | Answered

Can rhododendrons grow around black walnut trees?

A.
A.Answers to this queston: Add Answer
drtreelove
Certified GKH Gardening Expert
Answered on June 9, 2018

Hello,
Thank you for sending us your gardening question.

Black walnut trees have chemical properties in leaves and roots that can suppress the growth of other plants. This is called "allelopathy". Some plants are more susceptible to the allelopathic effect from black walnut than others, rhododendrons (including azaleas) are known to be affected.

This article has a section on allelopathic trees and discusses black walnut:

https://www.gardeningknowhow.com/garden-how-to/info/allelopathic-plants.htm

Please let us know if you have any other gardening questions and happy gardening!

Thanks
Gardening Know How

++++++++++++++++++++++++
'Like' us on Facebook: http://www.facebook.com/gardeningknowhow
Follow us on Twitter: http://twitter.com/gardenknowhow - @gardenknowhow
Follow us on Pinterest: http://pinterest.com/gardenknowhow/
Follow us on Instagram: https://instagram.com/gardeningknowhow/
++++++++++++++++++++++++

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More