Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

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?

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

Houston plants adaptable to Birmingham, AL
June 14, 2007 - I have recently moved from Houston to Birmingham Al. I had a wildflower garden in my back yard. Would the same flowers work here as well? I would love to have the same beautiful colors here.
view the full question and answer

Ground cover for Thornton CO
June 04, 2012 - I want to order ground cover because I don't want to mess with grass any more. I live in Colorado, north of Denver. The soil has a lot of clay. I tried clover and that did not do well. My yard is par...
view the full question and answer

Error on message from Rogue River OR
July 25, 2011 - Previous message regarding sweet peas and how to get them growing was submitted with wrong state - It went out Rouge River, Rhode Island -- Should have been Rouge River, Oregon
view the full question and answer

Foundation plants for Albuquerque.
July 01, 2012 - Hello, I live in Albuquerque. I am looking for some native/xeric low water usage plants for foundation plants for my home. They will be foundation plants for a two story home that has a large ponde...
view the full question and answer

Worms on blackeyed susans and daisies in Tuckerton NJ
July 30, 2009 - I have black eyed susans and white daisies planted together. Not sure if this makes a difference. Today I noticed that there are tiny worms on both the plants they are almost the size of silk worms. ...
view the full question and answer

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