Johnson Grass

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  1. Lime painted rock and pebbles
  2. How do you kill Johnson grass
  3. Is Johnson grass poisonous to cattle?
  4. Burr Weeds and Johnson Grass
  5. Johnson grass
Asked by kurosawa on July 27, 2011
Lime Painted Rock and Pebbles

Will rocks and pebbles painted with lime prevent Johnson grass and other bad weeds from growing in a Japanese rock garden?

ANSWERS
Cathy

No, lime effects pH, it does not have any effect as a grass killer. You could apply weed killer with a paint brush to help get it under control. But you will have to be very careful with the application.

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Asked by Spencer Arthur on October 27, 2014
How Do You Kill Johnson Grass

Name a product that can be used to kill the Johnson grass.

ANSWERS
theficuswrangler

There is no magic potion for johnson grass eradication, but it can be done with some persistent effort. This article will tell you more: https://www.gardeningknowhow.com/plant-problems/weeds/controlling-johnson-grass.htm

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Asked by anne.vosper on April 4, 2015
Is Johnson Grass Poisonous to Cattle?

Got some seed from for my canaries and thought about planting some in my garden but I don’t want it to spread to the paddocks if it is poisonous to cattle.

ANSWERS
shelley
Certified GKH Gardening Expert

Johnson grass can be toxic to our livestock, but only under certain conditions. It produces a toxin, prussic acid, when it is under stress (such as drought, freezing weather). More information can be found here:

http://wilkes.ces.ncsu.edu/2014/10/johnsongrass-in-pastures-can-be-toxic/

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Asked by Anonymous on July 23, 2015
Burr Weeds and Johnson Grass

My yard is infested with burr weeds and Johnston grass weeds. I keep pulling them out, but it seems they come right back! The Johnston grass grows right at the edge of the chain link fence so it’s hard to get the roots for fear of breaking the bottom line. How can I get rid of these two invaders once and for all? Thank you!

ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert

Spot treating the weed with vinegar, boiling water, or Round-up may help. Also, for the burr weeds, this article may have some suggestions: https://www.gardeningknowhow.com/plant-problems/weeds/burr-medic-weed.htm

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Asked by bcs81 on July 9, 2017
Johnson Grass

I have Johnson grass growing in a water front yard near the edge of the lake. What is the best method to get rid of it? I am concerned about using herbicides that close to the water.

ANSWERS
Downtoearthdigs
Certified GKH Gardening Expert

You may want to check with your County Extension Office to find out the safest way to treat and remove this grass near a water source.
Here are some links to help you.
https://www.gardeningknowhow.com/extension-search/

https://www.gardeningknowhow.com/plant-problems/weeds/controlling-johnson-grass.htm

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