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 Invasive Plants Questions

Plants that will do well in a water retention basin in White Stone Virginia
May 23, 2011 - I am looking for plants to grow under pine trees in a water retention basin. The pine trees line the basin. When it rains it will hold water for about two to three days before evaporating. I have p...
view the full question and answer

More information on coltsfoot in Rindge NH
July 28, 2009 - I wanted to give input regarding the query from Barbara Medford about: Coltsfoot invasive in Rindge NH Tuesday - July 21, 2009. I think it likely that the coltsfoot she described is Tussilago farfara...
view the full question and answer

Dandelions in bluebonnets in Bastrop TX
May 31, 2012 - I have a 20'x60' front yard area where I planted bluebonnets. It has become horrifically inundated with dandelions. How do I eradicate the dandelions while preserving the bluebonnets ? Thanks ...
view the full question and answer

Difficulty with Clay Soil from Palm Bay, FL
August 22, 2012 - I had a very nice little native shady area behind my house for over 40 years, but now it has been cleared except for a 100 foot tall live oak in the center of this raised mound (50' x 80'). I've be...
view the full question and answer

Nimblewill grass for a shady area in Dallas
April 04, 2013 - i have a very shady backyard and reading some of your post I think Muhlenbergia schreberi (nimblewill) will survive. Two questions: Is it drought resistant? Where can I buy the seeds?
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