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

Tuesday - December 16, 2008

From: Montgomery, TX
Region: Southwest
Topic: Invasive Plants
Title: Ways of eliminating smilax bona-nox
Answered by: Barbara Medford

QUESTION:

How can I get rid of "smilax bona" or green briar vines besides digging them up one by one? I have been told by Harris County Ext. Office to just mow them.. Ha Ha Good luck with that. Is there any herbicide available to get rid of them more quickly and easily?

ANSWER:

If it's any comfort to you, Smilax bona-nox (saw greenbrier) has been the bane of gardener's existence for a very long time. Smilax makes a thick, hardened root in which it stores water and nutrients. Hand pulling Cat-brier usually only breaks off the top-growth which the root quickly replaces. Dig and destroy these root storage organs and you will destroy the plant. This is never easy and is often impractical or impossible. Cutting new growth a few inches above the soil and painting the remaining stub with an herbicide labeled for that purpose is the most common control method.

Unfortunately, persistance is also required, there is no quick fix. This plant has long, large underground root systems to tubers that can be as big as a potato. Getting to that with herbicide is very difficult. However, speaking from experience, we moved onto a property that had been farm land with large oaks that were infested with the briers. Over a period of years, just digging them out, cutting them off, a certain amount of cursing, we did finally eradicate them.


Smilax bona-nox

Smilax bona-nox

 

 

More Invasive Plants Questions

Removal, spread of native mistletoe
January 24, 2009 - My neighbor has a lot of mistletoe growing in a tree in her front yard. I have a tree in my yard that has mistletoe in it. Each winter I have the plant removed so birds won't spread it around. Do you...
view the full question and answer

Identity of invasive vine in The Woodlands, Texas
December 02, 2013 - What is the invasive vine covering trees in The Woodlands, Texas?
view the full question and answer

Planting petunias around base of oak tree from Houma LA
March 30, 2013 - I live in south Louisiana and I want to plant petunias. Can I plant petunias around the base of an oak tree?
view the full question and answer

Need to Control Giant Ragweed in Wildflower Field in Austin, Texas
December 11, 2010 - I have an acre pond around my business park planted with several different kinds of wildflowers. I let all the vegetation grow until the first frost, because I have wildflowers that grow throughout ...
view the full question and answer

Getting rid of invasive Florida betony from Myrtle Beach SC
April 28, 2012 - How can I get rid of Florida Betony from my lawn and flower beds/ garden area. Garden area was thoroughly dug up and hand picked of all tubules last year at least a foot deep. They are much worse now....
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