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

Tuesday - July 02, 2013

From: San Antonio, TX
Region: Southwest
Topic: Erosion Control, Groundcovers
Title: Ground cover for a slope in San Antonio TX
Answered by: Nan Hampton

QUESTION:

Slope growing, no or little irrigation ground cover. The slope is probably greater than 30%. The area is currently a construction road at the base, cut into the hill. To re-establish with a ground cover that would be short enough not to need mowing. Pedestrians walk through the area so a short growth plant for safety. Prefer a bedding plant vs. grass.

ANSWER:

It would be helpful to know whether the area is in sun (more than 6 hours of sun a day), part shade (2 to 6 hours of sun per day) or shade (less than 2 hours of sun per day).  Since I don't know the sun situation on the slope, please be sure to read the information on GROWING CONDITIONS on each of the species pages that I recommend.

Glandularia bipinnatifida var. bipinnatifida (Prairie verbena) grows only 6-12 inches tall and has blooms from March through December.

Oenothera speciosa (Pink evening primrose) is semi-evergreen and is usually a sprawling plant.

Wedelia texana (Zexmenia) should be evergreen in San Antonio.   It blooms from June through November.

Calyptocarpus vialis (Straggler daisy) is semi-evergreen and usually grows to less than 1 foot.

Phyla nodiflora (Texas frogfruit) is semi-evergreen and blooms May to October.

You might consider using one of the sedges.  There are species that grow to less than 1 foot high and do well without irrigation after they are established.   Here is more information about sedges from McNeal Growers in Austin.  Here are two that are native to Bexar County:

Carex perdentata (Meadow sedge) grows in sun to about 8 inches high.

Carex planostachys (Cedar sedge) grows best in part shade to 6 inches high.

Using a combination of plants is your best bet.  That way you will learn what will grow best on your slope and a mix of heights and colors will make the area more interesting.   Any of the plants above will require irrigation to become established. 

 

 

From the Image Gallery


Prairie verbena
Glandularia bipinnatifida var. bipinnatifida

Pink evening primrose
Oenothera speciosa

Zexmenia
Wedelia acapulcensis var. hispida

Straggler daisy
Calyptocarpus vialis

Texas frogfruit
Phyla nodiflora



Cedar sedge
Carex planostachys

More Erosion Control Questions

Water eroding corner in Austin
October 25, 2011 - I live close to the Wildflower Center. My yard slopes - as do my neighbors' yards to one corner in my yard. The result is constant moisture in one corner. The rest of the yard is caliche, rocks (m...
view the full question and answer

Erosion Control for a NC Clay Slope
June 06, 2013 - Hi, We have a large slope on the road edge of our property that has been gradually eroding with spring rains (NC red clay). We would really like to plant something for erosion control but the bank is...
view the full question and answer

Economical, low maintenance plants for erosion control on a bank
May 29, 2006 - Please advise of all species suitable for preventing bank erosion, specifically those that will cover a southern exposure 400 foot long, 15 foot high bank in western North Carolina that grows rapidly ...
view the full question and answer

Deer Resistance and Erosion Control for St. Louis County MO
January 03, 2014 - I am looking for deer and rabbit resistant native plants for erosion control on a steep ravine slope with part sun and part shade in St. Louis County MO.
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center