En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

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

Thursday - September 27, 2012

From: Clinton, IA
Region: Midwest
Topic: Erosion Control, Groundcovers, Grasses or Grass-like
Title: Grasses for Erosion control in Iowa
Answered by: Brigid & Larry Larson

QUESTION:

We have a sloping yard in the midwest that gets 2-4 hours of sun during the warm weather. When we have large rainfalls, the water just pours down the slope causing a lot of erosion to the surrounding area. We are looking for a ground cover (perhaps a grass) that only grows to 3-5 inches tall that would not be damaged if mowed a few times a year on a high setting. The plants would need to grow deep roots to help slow down our erosion problem. Thank you for any help you can provide.

ANSWER:

Mr Smarty Plants agrees with your request for plants that form deep roots to address an erosion problem.  Our standard advice is that the best plants to stabilize a slope and prevent erosion are plants like grasses that have fibrous root systems and shrubs and perennials that spread with runners to form thickets.  Here is advice towards a similar issue in a very wet situation with erosion in Illinois.

Our general approach to find and recommend plants for your individual situation is to start with the list of recommended species for Iowa.  Then you can narrow this list of plants for specific characteristics that you desire.  For instance, when I  searched for grasses that tolerate shade or partial shade, there were ten species that fit these characteristics.  Four of these were relatively short and I expect either turf forming grasses or bunch grasses can achieve reasonable erosion control.  Consider these recommendations:

Deschampsia cespitosa (Tufted hairgrass)
Bouteloua curtipendula (Sideoats grama)
Carex pensylvanica (Pennsylvania sedge)
Pascopyrum smithii (Western wheatgrass)

Thinking you may like a little color – Mr Smarty plants also searched for groundcover herbs that are both short and tolerate shady conditions.  If this is of interest, check it out yourself, or consider these:

Callirhoe involucrata (Winecup)
Viola sororia (Missouri violet)

 

From the Image Gallery


Tufted hairgrass
Deschampsia cespitosa

Pennsylvania sedge
Carex pensylvanica

Sideoats grama
Bouteloua curtipendula

Winecup
Callirhoe involucrata

Western wheatgrass
Pascopyrum smithii

Missouri violet
Viola sororia

More Grasses or Grass-like Questions

drought-resistant turf grasses for New York City
June 16, 2011 - Hi - I work at the Smithsonian in New York City and we have a very large lawn that is frequently used in the summer for programming. It gets very beat up. I read an article in teh New York Times about...
view the full question and answer

Identification of native wild grass in Austin
February 01, 2009 - I had some landscaping done in my yard in Austin. My aim was minimal care so I requested native Texas plants. I am plant illiterate and just now looking in the City of Austin "grow green guide" to...
view the full question and answer

Plantings for sides of retention pond in Willits CA
July 02, 2012 - I am looking for recommendations for ground cover for the outside of embankments which impound wastewater. This is to improve the aesthetics and deter weeds. The slopes are 1V:2H, so if we can avoid...
view the full question and answer

Tall native grasses for privacy in Central Texas
June 29, 2013 - Hi- I am looking for a grass that will grow tall and be thick for privacy. I live here in Austin east of 35. Obviously something draught tolerant would be great! Thank you!
view the full question and answer

Should wait to trim Inland Sea Oats until all seeds have been dropped from Austin
March 18, 2011 - Regarding Inland Sea Oats: I trimmed the stalks that have lost all the seeds. Should I trim the rest of the stalks or wait until all seeds have dropped?
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center