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

Monday - September 28, 2009

From: Middletown, MD
Region: Midwest
Topic: Grasses or Grass-like
Title: Eliminating crabgrass in Middletown MO
Answered by: Barbara Medford

QUESTION:

Dear Mr. Smarty Plants, I am having trouble with my lawn, specifically with the crabgrass in it. It now covers over 1/3 of it. I started using corn gluten meal this year, with limited tangible success. Corn gluten meal is a pre-emergent and sometimes hit-or-miss on when to apply it. Is there an environmentally responsible POST-emergent weed control product that I can apply to hit the crabgrass on multiple fronts? In the near future, I hope to transition/replace my exotic grass with native alternatives. Thank you.

ANSWER:

We found a website from The University of Illinois Purdue Extension Control of Crabgrass in Home Lawns. We recommend neither for nor against herbicides, so you will have to judge for yourself whether the products suggested in this article are suitable for your purposes. Crabgrass is an annual, so the more you can do to prevent seeding, the better. Mowing twice a week will not necessarily wipe it out, but it should help control it. And the best deterrent for crabgrass is a good, healthy turf. 

Since you mention wanting to replace your non-native exotic grasses with native plants, please read our How-To Article Native Lawns. Of the three grasses mentioned in that article, both Bouteloua dactyloides (buffalograss) and Bouteloua gracilis (blue grama) are native to Missouri, while the other, Hilaria belangeri (curly-mesquite) is more of a southwestern grass and not native to Missouri. 

Since the grasses should probably be seeded or sodded in Spring in Missouri, we would suggest you start now planning the native area of your lawn, getting rid of the crabgrass in the process, and follow the instructions in the How-To Article on preparing the soil. Out with the Bad Plants, In with the Good.

From our Native Plant Image Gallery:


Bouteloua dactyloides

Bouteloua dactyloides

Bouteloua gracilis

Bouteloua gracilis
 

More Grasses or Grass-like Questions

Grasses for Erosion control in Iowa
September 27, 2012 - We have a sloping yard in the midwest that gets 2-4 hours of sun during the warm weather. When we have large rainfalls, the water just pours down the slope causing a lot of erosion to the surrounding ...
view the full question and answer

Identifying native grasses in DeSoto TX
September 15, 2009 - I want to plant my 1.5 acre yard in a native grass; there are already some grasses growing there. How do I identify this grass? Thanks
view the full question and answer

Grasses for area under pecan tree in Tennessee
March 26, 2009 - I have two big pecan trees in my yard and would like to know what kind of grasses would thrive in the shade and also survive for my area of the country.
view the full question and answer

Plants for shade, poor soil in Park Ridge NJ
June 17, 2010 - Hello! I live in far northeast New Jersey, by the New York state border. I am looking for plants for areas of my lawn that nothing currently grows in - due to shade and poor soil quality - very rocky,...
view the full question and answer

Erosion Control in a Mid-Atlantic Shoreline
April 09, 2012 - My family owns a riverfront property off of Machodoc Creek which runs into the Potomac on the Virginia side. The water is roughly 3 feet deep at the shoreline and concrete cylinders are used to contro...
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
© 2014 Lady Bird Johnson Wildflower Center