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
2 ratings

Tuesday - March 19, 2013

From: Buda, TX
Region: Southwest
Topic: Problem Plants, Turf
Title: How to control Yellow Woodsorrel in Habiturf?
Answered by: Joe Marcus

QUESTION:

Last year we planted Habiturf in our front lawn and prepared the ground as directed with organic compost. This year we have an infestation of low growing yellow oxalis which we believe came in with the compost as we have not had this before. What do you recommend as a control? as weeding will not get all of it and the areas are large. We are considering using an herbicide knowing it will knock out our grass but then we will reseed.

ANSWER:

Yellow Wood Sorrel, Oxalis stricta, and Slender Yellow Wood Sorrel, Oxalis dillenii, both North American natives, are often unwanted visitors in lawns, especially newly-establish or unhealthy lawns.  As your lawn matures and develops a denser stand of grass, broadleaf weeds like Wood Sorrel will be less of an issue.  Promoting healthy grass growth will eventually pay off in reduced weed infestation.

There are broadleaf herbicides labeled for use on oxalis.  These chemicals are specific to dicot weeds and will not kill grasses and other monocots if used properly.  We take neither a pro nor con stance on garden chemicals, but only urge those choosing to use them to do so in a manner that is safest for them and the environment and to strictly adhere to label directions.

Other than hand weeding, we know of no effective organic control for Oxalis species.

 

More Problem Plants Questions

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

Desert Willow Roots from Lubbock, TX
September 18, 2014 - I have a very, very happy Desert Willow that has grown larger than we expected and is probably too close to the house. Do I need to worry about a cracked foundation or pipe problems? Thanks!
view the full question and answer

Are there prescribed burn professionals in central Texas?
July 12, 2012 - I am looking for someone to hire for a controlled hillside burn. Can you recommend someone to hire?
view the full question and answer

Eliminating unwanted vine on arbor in San Francisco
November 20, 2012 - There is a vine growing on our arbor, it has sickle-shaped pods and is crushing the arbor, how do we get rid of it?
view the full question and answer

Eliminating Najas flexilis from a pond
December 22, 2014 - What method would be effective in eliminating Najas Flexilis from a pond?
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