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Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

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Thursday - January 10, 2013

From: Knoxville, TN
Region: Southeast
Topic: Erosion Control, Grasses or Grass-like, Herbs/Forbs
Title: Need plants for steep slope in Knoxville, TN.
Answered by: Jimmy Mills

QUESTION:

I have several steep banks that have to be weed-eated each year every week. Do you know if there are any kinds of ground cover that would take over the weeds on these steep dangerous banks. I live in Knoxville Tn.

ANSWER:

Mr. Smarty Plants is wondering what kind of weeds you have that require that much weed-eating, and how short you wish to keep them? We often recommend planting grasses/grass-like plants to help control erosion on steep slopes, but many of these are 12 inches tall or more. I am going to suggest two approaches to help solve your problem. The first is to introduce you to our Native Plant Database.

 Scroll down to the Combination Search Box. and select Tennessee under State, Grass/grass-like under Habit, and perennial under Duration. Check sun under Light requirement and dry under Soil moisture. Click on the Submit Combination Search button, and you will get a  list of 20 native grass/grass-like plants for Tennessee landscapes. Clicking  on the scientific name of each plant will bring up its NPIN page which contains a description of the plant, its growth characteristics and requirements, and in most cases images. As you check out each plant, you can note its size and other features to see if they might fit your needs.

You can modify your search by going to the Narrow Your Search Box on the right side of the screen and change Grass/grass-like to Herb under General Appearance, and clicking 0-1 under Height. Clicking on  the Narrow your Search Box will bring up a list of 12 flowering plants that you can check  out.

The second approach is to share the answers to previously asked questions. We quite often get questions about what to grow on steep slopes. All of these questions are from the southeastern US, so growing conditions will be similar to Tennessee. You will find suggestions for plants in each answer along with images of the plants.

Previous questions
Tennessee 
    #5241

Georgia
   #4101

South Carolina
   #8126

North Carolina
   #6854  erosion control blanket
   #3407 

Virginia,  talks about not cutting the grass can strengthen the roots
   #4007

 

More Erosion Control Questions

Plants for erosion control in Georgia
May 17, 2010 - Hello, I have a question regarding water run-off coming from the neighbors yard as my yard is below their yard. What kind of ground cover would grow very quickly (low to ground) to help with the r...
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Erosion under a Live Oak in Edom TX
March 31, 2009 - We have a large Live Oak tree in the front yard that I wouldn't part with for the world. The soil is almost solid sand underneath the tree, and in deep shade. It is on a slight slope and eroding wi...
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Flowering Deer Resistant Ground Cover for Dry Rocky Soil: Alabama
March 26, 2012 - My question has been partially answered in the FAQ but I live in Birmingham where the soil is clay and rocky so it's a little different. I want to plant on a rocky slope (small rocks like the size of...
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Erosion control for edge of artificial lake in California
August 14, 2013 - How about erosion control at the edge of an artificial lake in Southern California? Juncus and ..?
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Low maintenance, native plants for sloping drive near Philadelphia
October 20, 2004 - My cabin is located in the northwest suburbs of Philadelphia. I am looking for low maintenance plants that would look good on the sides of a driveway that slopes upward. This is a potential project fo...
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