Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Monday - November 19, 2012

From: Austin, TX
Region: Southwest
Topic: Planting, Groundcovers, Herbs/Forbs
Title: Want a ground cover instead of St. Augustine to fill in gaps in stone pathway.
Answered by: Jimmy Mills

QUESTION:

I'm considering using Silver Ponyfoot (instead of St. Augustine) to fill in the 6" gaps between my 24"x24" cut limestone blocks footpath and patio. Do they run long that may cover the blocks, which require me to trim (edge) around each block all the time? Thanks,

ANSWER:

Mr. Smarty Plants concurs your intent avoid using St. Augustine to fill the gaps between your limestone blocks. To me Silver Pony foot Dichondra argentea (Silver ponyfoot)is a good choice, but as you read in the links below, it can produce runners up to 4’ in a year. This may be more trimming than you want to do, but its better that mowing St. Augustine.

missouribotanicalgarden.org

smgrowers.com

Another possibility is a ground cover called Horse Herb Calyptocarpus vialis (Straggler daisy). From the links below, you can see that it has its proponents and detractors. It is fast growing and is considered invasive by some.

greatstems.com

gardenweb.com

A third possibility is a native perennial ground cover called Frog Fruit Phyla nodiflora (Texas frogfruit).

regionalconservation.org

Any plant that is growing in the gaps is going to require some maintenance. You will have to choose the best looking, low maintenance plant you can find.

 

From the Image Gallery


Silver ponysfoot
Dichondra argentea

Horseherb
Calyptocarpus vialis

Texas frogfruit
Phyla nodiflora

More Herbs/Forbs Questions

Suggestions for native perennials in Staten Island, NY
April 03, 2008 - My back yard garden has a good base of evergreen shrubs and perennials all doing well in clayish soil and I am ready now to add color and texture in an area with partial sun. Can you suggest hardy...
view the full question and answer

Problems with giant coneflower in Richardson TX
June 05, 2010 - Dear Mr Smarty Plants- I have had a giant coneflower in my garden for 2 years now. This year it came up like it always had..got lots of leaves and then withered..turned brown and died. It got plent...
view the full question and answer

Native plants for border in Katy, TX
May 13, 2009 - I live in Katy, TX. I am looking for a native plant for front of the border edging (approx 10 inches).
view the full question and answer

Growing Texas star hibiscus in Central Texas
August 11, 2014 - Hi there, I purchased a beautiful Texas Star Hibiscus that I want to plant in my yard. Unfortunately, my yard being in Travis Heights, I hit a lot of caliche when digging. To plant some other nativ...
view the full question and answer

Plants for North Myrtle Beach SC
June 05, 2012 - What plants will do well at North Myrtle Beach, SC that will take full sun with dry soil?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.