Rent Shop Volunteer Join

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 - December 19, 2011

From: Hillsboro, TX
Region: Southwest
Topic: Seed and Plant Sources, Propagation, Groundcovers, Herbs/Forbs
Title: Source of dollarweed for shady lawn in Hillsboro TX
Answered by: Barbara Medford

QUESTION:

I live in Hillsboro,Tx - Where can I get Dollar Weed for my shady lawn?

ANSWER:

As you can see from this USDA Plant Profile Map, Hydrocotyle umbellata (Manyflower marshpennywort), also referred to by the common name "dollarweed," is not necessarily native to Hill County. A near relative is Hydrocotyle bonariensis (Largeleaf pennywort), quite similar. Both are widely considered as weeds, although we think it is a good native replacement for non-natives that will grow in the shade, and feel sure it will grow in Hill County if it isn't already there. Here is a previous Mr. Smarty Plants answer that deals with that subject. If you follow the plant link above, you will learn that it will thrive in moist or wet soil, grows in sun, part shade or shade, is 3 to 10 inches tall and blooms from April to October. Siince it is often called a weed, finding seeds commercially available could be challenging, although the website page says that it is.

We went to our National Suppliers Directory and typed in Hydrocotyle umbellata in the "Name" box and clicked on Search. This yielded us no results. Then, we went to the "Enter Search Location" box and entered your town and state. This gave us a list of native plant nurseries, seed suppliers and landscape and environmental consultants in your general area. All those on the list have contact information, so you can e-mail or call to find out if they carry the seeds. If they don't, they may have a source they can suggest.

If you can find some of it growing wild, you might (with the permission of the landowner) dig up some plugs of it and transplant to your lawn. First, however, we suggest you read this Dave's Garden forum on the plant; notice how many respondents regarded it as invasive. It is always identified as being a water plant, or growing in wet conditions. In terms of the weather Texas has had this year, the drought might inhibit invasiveness. We did notice that most of the complaints about the invasiveness came from Florida, which ordinarily has a more moist environment than North Central Texas.

 

 

From the Image Gallery


Manyflower marsh-pennywort
Hydrocotyle umbellata

Manyflower marsh-pennywort
Hydrocotyle umbellata

Manyflower marsh-pennywort
Hydrocotyle umbellata

More Herbs/Forbs Questions

Is dichondra repens native from Hillsboro, TX
November 28, 2012 - What about diachondra repens? Is it native? Thank you,
view the full question and answer

Shade tolerant groundcover plants for Tarrant County, Texas
November 01, 2011 - I live in far NE Tarrant County (Ft Worth), TX and need a groundcover that can tolerate complete shade and poor, rocky, clay soil. I need mostly for erosion control, and needs to be relatively low
view the full question and answer

Pruning of non-native oxblood lilies from Austin
March 27, 2014 - My Oxblood Lilies flowered quite late last Fall. Their foliage is still very green. Can I cut it down now or do I have to wait until it goes brown?
view the full question and answer

Area under live oaks from Austin
October 08, 2012 - We have many live oaks in our mostly shaded half acre. While I have tried to plant mostly native plants, often beneath them, the plants are showered with leathery leaves, acorns and sap, while oak sp...
view the full question and answer

Problems with non-native bi-color iris from Spring Branch TX
August 18, 2011 - Bi colored iris. I have four plants planted around our water feature last fall. Up until recently they all looked very healthy, yet not blooming. Several weeks ago I noticed that two of the plants ...
view the full question and answer

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