Contact Us Host an Event 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

Friday - September 22, 2006

From: stephenville, TX
Region: Southwest
Topic: Invasive Plants, Grasses or Grass-like
Title: Control methods for Cenchrus spinifex, Coastal sandbur
Answered by: Joe Marcus

QUESTION:

I have some of the nicest, thickest, greenest grassburs in the county of Erath. What is the best and quickest way to get rid of them? I have heard of a product called cornmeal gluten. Any info appreciated.

ANSWER:

While more than one species of grassbur occurs in your area, the one plagueing you is probably Coastal grassbur or Coastal sandbur, Cenchrus spinifex. A grass itself, grassbur is a common, troublesome weed in pastures, lawns and other turf areas.

Grassbur thrives in overgrazed or otherwise struggling turf, especially nutrient-poor turf. Healthy turfgrass will typically outcompete Cenchrus. Improved turf health is the surest strategy for ridding the lawn of grassburs.

Corn gluten is a popular and effective pre-emergent herbicide useful for some annual weeds, especially crabgrass and dandelion. We have not heard of its use for control of grassbur, but it might be somewhat effective if for no other reason than it contains about 10% nitrogen, which your turfgrass will appreciate. The timing of corn gluten application is critical. To be effective, it must be put down just before weed seeds germinate.

I am forwarding some information on turfgrass management that you might find useful. This link is to an article from our Native Plant Clearinghouse on native lawns. Also, here is more information about Cenchrus spp. and their control.

 

More Invasive Plants Questions

A method for killing nandina and ligustrum with herbicide
October 19, 2012 - Is there an effective herbicide that can be painted on the stumps of Nandina and Wax-leaf ligustrum to keep them from growing back? Thanks so much!
view the full question and answer

Native turf grass for Austin
March 24, 2014 - I am installing a xeriscape landscape in my yard. It will be in full sun and I am looking for an alternative to turf, such as monkey grass. However, I am concerned about the light. Suggestions?
view the full question and answer

Help for restoring landscape to indigenous native plants
November 05, 2007 - I have inherited some acres in Robertson County (Texas) which is about 40 miles north of Bryan/College Station. I would like to restore the landscape to the indigenous native plants without just lett...
view the full question and answer

Identity of rubbery-looking tree with long green thorns
March 21, 2012 - I am trying to identify a tree that has a green rubbery look with long, sharp, green thorns. This tree is on my property in Conroe, TX and the soil type is Gladwater clay frequently flooded.
view the full question and answer

Plants to replace Polygonum cuspidatum ( Japanese knotweed)
August 10, 2013 - I live in a heavily wooed area of Chippewa Falls, WI. Our property is covered with Giant Japanese Knot Weed. We have been trying to get rid of it for years. We are finally going to try using the dr...
view the full question and answer

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