Are Hibiscus plants/flowers sensetive to Walnut toxicity/jugolone? I have...

Asked August 2, 2014, 12:36 PM EDT

Are Hibiscus plants/flowers sensetive to Walnut toxicity/jugolone? I have several plants that I want to transplant around a large walnut tree in our front yard.

Indiana black walnut tree juglone

1 Response

Hibiscus are listed in the following as tolerant to juglone:
http://extension.psu.edu/plants/gardening/fact-sheets/trees-shrubs/landscaping-and-gardening-around-...

Here is another list that gives some ideas for other tolerant plants:

https://www.extension.purdue.edu/extmedia/HO/HO-193.pdf

Another thing to consider is the amount of sun that the plants would get. Hibiscus need more light than they might receive under a tree unless they are out far enough to not be blocked by the canopy.

Here is some good general information on planting under trees:
http://www.extension.umn.edu/garden/landscaping/implement/planting.html