En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Plants for banks of a retention pond in Alabama

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

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Friday - April 24, 2009

From: Mobile, AL
Region: Southeast
Topic: Erosion Control, Grasses or Grass-like
Title: Plants for banks of a retention pond in Alabama
Answered by: Nan Hampton

QUESTION:

What can we plant on the inner and out walls of a detention pond to stop erosion? The pond is located in a neighborhood in Mobile, AL and the walls are 9 ft high with a steep slope.

ANSWER:

If the banks are very steep you might want to consider using erosion-control blankets to stabilize the erosion area. The erosion-control fabric works by slowing the runoff water and allowing sediment 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. Underneath the matting the roots of the plants 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.

Native grasses are an excellent choice for controlling erosion because they develop extensive fibrous root systems that hold the soil in place. Seeds can be sown under an erosion control blanket or grass plugs can be planted through the blanket. After the grasses have begun to establish themselves and stabilize the area you can add other plants. On the pond edge you could consider adding some attractive aquatic or semi-aquatic plants to help prevent the erosion.

GRASS/GRASS-LIKE

Andropogon glomeratus (bushy bluestem) is an attractive grass that does well in moist areas in full sun.

Andropogon virginicus (broomsedge bluestem) grows well in part shade in moist soils.

Panicum virgatum (switchgrass) grows in sun or part shade in dry to moist soils.

Carex blanda (eastern woodland sedge) will grow in sun, part shade or shade and in moist or dry soils.

Chasmanthium latifolium (Inland sea oats) is a very attractive grass that grows in part shade and shade in moist soils.

Typha latifolia (broadleaf cattail) will grow in sun or part shade at the edge of the pond in dry to wet soil.

Eleocharis montevidensis (sand spikerush) would grow well at the edge of the pond in wet or moist soil in the sun.

HERBACEOUS 

Lobelia cardinalis (cardinalflower) 

Helianthus angustifolius (swamp sunflower)

Conoclinium coelestinum (blue mistflower)

SHRUBS

Hibiscus coccineus (scarlet rosemallow)

Itea virginica (Virginia sweetspire)

Lindera benzoin (northern spicebush)


Andropogon glomeratus

Andropogon virginicus

Panicum virgatum

Carex blanda

Chasmanthium latifolium

Typha latifolia

Eleocharis montevidensis

Lobelia cardinalis

Helianthus angustifolius

Conoclinium coelestinum

Hibiscus coccineus

Itea virginica

Lindera benzoin

 

 

More Erosion Control Questions

Groundcover plants for erosion problem in Orlando
June 01, 2009 - Hi, I live in Orlando, and have a terrible erosion problem on one side of my back yard. Every time it rains, I lose my yard under the fence! The area is part sun. Can you please suggest a plant or ...
view the full question and answer

Plants for steep slope in California
November 13, 2010 - Where do I find out about the specific root structure of various California native plants? Are there shrubs that have tap roots & hence are good for steep slopes? The genus of any such plants that y...
view the full question and answer

Native plants of dune erosion control in Michigan
May 30, 2008 - We care for Lake Michigan dune near our home in New Buffalo and would like to provide erosion control with native species that will also enhance the beauty of the dune with long lasting flowers. The ...
view the full question and answer

Need suggestions for plants for a 45 degree slope in Falls Church, VA.
January 23, 2013 - Have a 45 degree hillside 50 feet wide by 60 feet long on north side of 26 story building. Very little sun with the need for soil retention plants. Would like a native plant or plants to cover area...
view the full question and answer

Native grasses for erosion control in the state of Washington
December 16, 2010 - Which native grasses do you suggest for maximum erosion control in my area?
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center