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Saturday - June 12, 2010
From: Woodlawn, TN
Region: Southeast
Topic: Erosion Control
Title: Erosion control for steep creek bank in Tennessee
Answered by: Nan Hampton
QUESTION:
I have creek bank erosion problems in Woodlawn, Tennessee, northwest of Nashville. What plants can I place there. The bank is approximately 12ft almost vertical.ANSWER:
We recommend grasses for controlling erosion because of their extensive fibrous root systems that serve to hold the soil in place. However, seeding grass is not the whole process. The seeds need moisture to germinate. If the moisture comes in the form of rain, it is likely to wash the seeds down your steep bank before that have a chance to germinate and take root. One possible solution is to use an erosion control blanket. The erosion-control fabric works by slowing the runoff water and allowing sediments to fall out rather than be washed away. Seeds are sown under the erosion-control material and grow up through the matting when they germinate. You can also insert plants into the soil by cutting through the matting. The roots of the plants that are growing through the erosion-control material anchor the soil to stop the erosion. If you use erosion-control blankets made of biodegrable material, they will eventually disappear leaving the plants to control the problem. Many nurseries carry this erosion control fabric.
Here are some candidate grasses and sedges native to your area. Since I don't know all the growing conditions (e.g., available sun and moisture) at your site, you should check the GROWING CONDITIONS section for each species to determine if it is suitable for your site:
Andropogon virginicus (broomsedge bluestem)
Carex blanda (eastern woodland sedge)
Chasmanthium latifolium (Inland sea oats)
Eragrostis intermedia (plains lovegrass)
Muhlenbergia schreberi (nimblewill)
Here are some other plants that you could use on the bank.
Artemisia ludoviciana (white sagebrush)
Conoclinium coelestinum (blue mistflower)
Cephalanthus occidentalis (common buttonbush) would do well at the base of the bluff on the edge of the creek.
Ferns would work in mostly shady areas. Here are a few suggested ones.
Dryopteris marginalis (marginal woodfern)
Osmunda cinnamomea (cinnamon fern)
More Erosion Control Questions
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I have just made a 3/4 acre pond and the south facing slope is too steep to mow.Can you suggest any ground cover plants I could use to look nice and prevent erosion.
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October 17, 2012 - I live in Bonsall, CA. (San Diego) I have 3 acres, flat and sloped that are graded dirt. (DG and sheep poop from previous owner). It is getting close to mud season and I'd like to plant winter cover...
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June 26, 2008 - I have a bank along the road that is too steep to mow. This bank faces east and only gets 2 - 4 hours per day of sunlight. I'd like to try ground cover to prevent erosion, however visibility is a p...
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Plants for a creek bank in Northern Illinois
March 26, 2009 - Hello.
I live in Northern Illinois. The creek (northern exposure in a wooded area) on the back of my property has bare muddy banks and is subject to seasonal floods. I want to plant something hardy t...
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January 30, 2012 - What shrubs can I plant on a wet slope that gets partial sun that will help control erosion? They need to be something the deer won't eat! We have lots of deer.
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