Ask a Question
Notify Me On Question Update
Email this Question
The grass under my english walnut tree is not doing well. What can i do to help the grass grow?
Rate This FAQ
Walnut trees, black walnut & English walnut and other closely related trees, have a chemical compound called juglone, which inhibits growth of other plants. This gives walnut a competitive edge, so other plants have a more difficult time growing because of juglone.
We do not recommend people to collect leaves, nuts, or twigs from walnut trees and put into compost exactly for this reason. Grass, groundcovers, many plants will not survive under walnut trees. Best advice it to cover the roots of trees with 2-4 inches of organic mulch such as bark nuggets that will prevent weeds, moderate moisture and temperature of soil as far out as the drip line of the tree.
Here is a link to an extension article on juglone and effects on other plants. Click on http://www.wvu.edu/~Agexten/hortcult/fruits/blkwalnt.htm
Submit Your Suggestion
Other Questions In This Topic
- How close together can flowering pear trees be planted?
- Our neighbors have recently cut down a Globe Willow and A Lombardy Poplar. They did not remove the trunks and the roots are not popping up in our lawn. Is there anyway for us to stop this from happening? These people are not the fastest movers and I have a feeling that the trunks will never be fully removed. These roots have already started to push up our concrete and have left runners down our lawn.
- I have an apricot tree in my backyard that is loaded with apricots. We have not sprayed the tree with anything, but I would like to use what I can of the fruit that is not 'buggy'. The apricots have red/brown spots on the skin, my research tells me it might be a fungus. Would the fruit be safe to eat if it was cooked and then canned? Also, I would like to transplant some of my fathers raspberry bushes, when is the best time to do that?
- We have a red Haven peach dwarf peach tree. It is really not growing as tall as advertised. If that is the case and we plant a standard size can we count on it not getting as tall as advertised? What are the best peach trees for Utah. I know our zone Starks have a few trees that are very hardy but they really don't brag about the taste and quality of the peach. Do you have any suggestions? Thanks
- I am looking for a shrub or tree that can line my driveway but, the problem is that it is facing the south and gets little to none water. Can you suggest some drought resistant plants that will work for that particular area?
- In the past you've offered a lawn-problem analysis --- as I recall a sample was brought in to your office and a quick analysis was done --- is the program still active? What is the schedule?
- What are the differences and advantages or disadvantages of soil amendments? Specifically Perlite (expanded silicous rock), Vermiculite (expanded mica), Utelite (expanded shale).
- We have creeping mountain sorrel in our lawn and can't get rid of it. Do you have any recommendations on products that might kill it, or any other ways to get rid of it?