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A Message from Margaret Roach

The Urgent Garden Question Forum is part of A Way to Garden, but there is a difference between it and the blog itself. Stated simply:

On the blog, I choose the topic and post about it, and readers may wish to comment in response.

On the forum, the subject matter is driven by you. You initiate the conversation, and (hopefully) chime in to help one another and just get acquainted. I will stop in, but not answer every question; this is a place for community-driven discussion about anything reasonable that interests gardeners.

To post on the forum, you must register. The process is simple (link above). To get a photo to accompany your posts, called a Gravatar, go here.

Four overall things will enhance the experience:

Search before asking a question to see if there’s already a thread (and even maybe an answer!) on that subject.

Scan the list of forums within the system to see which one is the place for your post.

If you want to have general conversation, the General forum would be the best place to begin.

When you do post something, give it a good subject line (title) – so not “A Perennial Question” but “How to Divide Daylilies” or “When to Transplant Peonies.” This makes the topic more accessible to others who may have your answer. For important etiquette rules, please read “Getting Started” at the top of the Forums. Thanks for your visit.

How Evil Are Black Walnut Trees?

This topic contains 3 replies, has 3 voices, and was last updated by MarianFaux 2 years, 10 months ago.

Viewing 4 posts - 1 through 4 (of 4 total)

Author	Posts
Author	Posts
May 27, 2008 at 12:36 pm #17211
James
May 27, 2008 at 12:36 pm #17212
James	A neighbor has mature black walnut trees not far from where I set up my vegetable patch. Another neighbor told me that she was unable to grow vegetables because of the proximity of the black walnuts. This is my third year of gardening. The dark, green leafys have done well in the space, while others have met with mixed success. The biggest failures have been the tomatoes. Plenty of sun, and the tomatoes come along nicely through July, but they seem to get stunted and shrivelled before the big red payoff. Sun is not the issue. Is it the black walnut trees that are to blame?
May 27, 2008 at 2:05 pm #17213
margaret	Indeed the substance produced by black walnut roots is allelopathic, or toxic, to many other plants…including tomatoes. A friend has the same problem at her house. So frustrating. I was interested to learn what other plants are affected negatively like the tomatoes, and it’s a list of various gardening favorites, including apple trees, potatoes, rhododendron, blueberries… Check out this Ohio State fact sheet on the topic for more details: http://ohioline.osu.edu/hyg-fact/1000/1148.html
July 17, 2010 at 4:44 pm #17214
MarianFaux	I garden under black walnuts and have been compiling a list of what will grow. I’m happy to share it if anyone is interested. They are frustrating for food growers!

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