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

Wednesday - March 18, 2009

From: Dothan, AL
Region: Southeast
Topic: Invasive Plants, Problem Plants
Title: Elimination of Whitemouth dayflower in Dothan AL
Answered by: Barbara Medford

QUESTION:

I am infested with Widow's Tears in my yard. I would like to get rid of them. Can you tell me how?

ANSWER:

While all the references we saw said this was a lovely little flower nice for naturalizing in masses with early spring bloom, the same references admitted it could be invasive, which you already know. Unfortunately, we have no unique new ideas on how to get rid of Commelina erecta (whitemouth dayflower). It is mostly still a matter of pulling it out. Compounding the problem is that it has tubers in its root system, which makes it more difficult to eliminate the plant. And it's hard to get hold of, because, in spite of its name, it grows upright only if supported by other plants. Some sources said a hard freeze would kill the plant, but you're not likely to have a freeze that severe in Alabama. Also, in moderate climates like yours, what is usually an annual plant becomes a perennial. See this website Garden Bits Spiderwort to get another perspective.


Commelina erecta

Commelina erecta

Commelina erecta

Commelina erecta

 

 


 

More Problem Plants Questions

Replacing non-native St. Augustine with native grasses in Rockport TX
February 18, 2009 - Mr. Smarty Plants, I have a few questions for you. I live in Rockport and am in the process of revamping my yard to native species. I currently have San Augustine, weed infested grass. I want to scrap...
view the full question and answer

Giant Thistle-Like Plant from Elgin, TX
June 01, 2014 - I have a giant thistle like plant in my field we have been unable to identify. It looks like a milk thistle but it is short..only about a foot tall..stocky...and the flowers are giant..about 6 to 8 i...
view the full question and answer

Plant-related skin rashes from Round Rock TX
September 23, 2013 - I have been plagued with persistent skin rashes this summer, and it is happening with plants that have never bothered me before, for example, red yucca. The dermatologist says it is a plant reaction,...
view the full question and answer

Identification of invasive plant
March 26, 2010 - I have found an invasive plant species in Martindale, Texas that I would like to identify for family members. It is taking over their pasture and is difficult to eliminate. It has not bloomed yet but...
view the full question and answer

Will catalpa roots damage a nearby swimming pool?
July 13, 2013 - Will a catalpa tree cause problems to my swimming pool? It is 8 feet away and I cut all the branches off every fall. It then grows back to about 6 feet in diameter an makes a great garden feature but ...
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