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 texana

Straggler daisy
Calyptocarpus vialis

Texas frogfruit
Phyla nodiflora



Cedar sedge
Carex planostachys

More Groundcovers Questions

Evergreen ground cover for PA
February 08, 2012 - I live outside of Harrisburg, PA. We are looking for a perennial ground cover that is long blooming and evergreen. It would be planted under some trees that would give them the whole range of sun (f...
view the full question and answer

Understory plants for Tuolumne Co., CA
May 14, 2007 - My driveway is lined with purple plum trees. I would like to grow something underneath them. What can I grow that will not harm the root system/health of the trees?
view the full question and answer

Drought resistant ground cover for Rancho Cucamonga CA
April 16, 2011 - I live in Southern California. Could you please recommend a low maintenance, drought resistant ground cover that does not attract rodents to create as their home (more than one suggestion would be GR...
view the full question and answer

Ground cover for damp areas
January 11, 2009 - I am looking for a cover ground plants that tolerate damp areas. Any suggestions?
view the full question and answer

Groundcover for steep hill in Georgia
May 04, 2009 - We have a large steep hill with only clay and rocks on it in the North Georgia Mountain area. What is a good Native ground covering to put on this for erosion? Something that grows fast preferably. ...
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