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
2 ratings

Thursday - January 10, 2013

From: Austin, TX
Region: Southwest
Topic: Erosion Control, Groundcovers, Grasses or Grass-like
Title: Winter groundcover for shaded backyard in Austin
Answered by: Nan Hampton

QUESTION:

I live in south Austin and have a shaded backyard. During the summer, the lawn died and the ground is now bare. I'd like to plant some kind of winter grass or ground cover that will hold the soil in place until I decide on a permanent landscape in the spring. Can you recommend some low-effort and low-maintenance winter grass or ground cover that I can plant or seed now (Jan 2013) and that will prevent erosion from rain? If it can be walked upon occasionally, that will be a bonus, but is not strictly necessary. Thank you!

ANSWER:

There are warm season grasses and cool season grasses. Warm season grasses germinate in the spring and, since they are heat and drought tolerant, are generally green throughout the spring and summer.  They  begin turning brown in the fall and remain so throughout the winter.  Cool season grasses germinate in the fall and are green and growing throughout the winter and spring, but die back in the heat of summer.  Although there are native cool season grasses [e.g., Poa arachnifera (Texas bluegrass), Elymus canadensis (Canada wild rye)and Nassella tenuissima (Mexican feathergrass)] that will tolerate some shade, it is actually a little late to plant them. They should have been planted in the fall to insure good germination and should be growing already.  Even the non-native  rye grasses (Lolium spp.)—cool season grasses ready to germinate and grow rapidly through the fall and winter—are not likely to germinate well and grow enough to help with your bare lawn.  Additionally, we do NOT recommend the non-native rye grasses—Lolium perenne (perennial rye grass) or Lolium perenne ssp. multiflorum (annual rye grass)—for the following reasons:

  • they aren't North American native plants and our focus and expertise are on plants native to North America;
  • they are invasive and responsible for massive reduction of native wildflowers along roadsides; and
  • additionally, they are allelopathic (kill or inhibit the growth of other plants) which gives them a competitive edge.

Rather than trying to seed a grass or other ground cover at this particular time of the year, you would be better off planting small nursery plants.  Sedges, which are very grass-like, would be ideal for your shady backyard.  The ones listed below are evergreen, generally do well in the shade and don't grow very tall—and, thus, require little if any mowing.  

Carex texensis (Texas sedge) grows in sun or part shade.

Carex perdentata (Meadow sedge) prefers the sun, but will grow in part shade.

Carex cherokeensis (Cherokee sedge) prefers part shade.  The leaves of this one are a bit coarser and the plant is taller than the other two, but it is still an attractive plant.

You should be able to find some of these as small plants in local nurseries that specialize in native plants.  (See our National Suppliers Directory to search for nurseries.)   I happened to be in one such nursery, Barton Springs Nursery, in Austin just today and they did have small containers of Poa arachnifera, Nassella tenuissima (synonym = Stipa tenuissima), Carex texensis and Carex cherokeensis.  There are, no doubt, other nurseries in the area with these species for sale.  With the ground soft from the recent rain, it should be relatively easy to plant theseUsually the plants in the containers can be divided in order to cover a larger area. 

Here is some more information about sedges from McNeal Growers, a wholesale nursery in Manchaca, TX and here is an article, Sedge Lawns for Every Landscape, from Brooklyn Botanic Garden.

 

From the Image Gallery


Texas bluegrass
Poa arachnifera

Canada wild rye
Elymus canadensis

Mexican feathergrass
Nassella tenuissima

Texas sedge
Carex texensis



Cherokee sedge
Carex cherokeensis

More Erosion Control Questions

Native grass for erosion control on Shoal Creek in Austin, TX
June 22, 2011 - What is the best grass seed for erosion control in Austin, TX - Shoal Creek goes through my back yard and I need to seed some areas and it gets lots of sun.
view the full question and answer

Construction problems on site in Mansfield OH
April 28, 2012 - Last year we had a rectangular above ground pool put in the person who "leveled" for use did a terrible job and basically dug a huge hole for us to put our pool in. The back side of the pool is abou...
view the full question and answer

Need plants to replace cedars on a 40 degree slope in Boerne, TX.
August 28, 2012 - My backyard is a roughly 40 degree slope that is covered with cedars. The slope is basically all rock, what can I grow here to replace the cedar which drink too much water. I would still like the area...
view the full question and answer

Plants for bridge foundation erosion control in WV .
July 05, 2010 - There is a stream on my property that I must cross to get to my house from the road (stream is about 6 - 8 feet wide, with 5 to 6 foot banks). I've recently had to have the bridge repaired, and the ...
view the full question and answer

Shade tolerant plants for erosion from Austin
May 03, 2014 - I live in Austin and my house backs up to Shoal Creek. I am looking for a native creeping vine or something that will grow on the shaded bank to help prevent erosion. It should be able to tolerate the...
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
© 2015 Lady Bird Johnson Wildflower Center