En Español

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
3 ratings

Saturday - May 16, 2009

From: Jacksonville, FL
Region: Southeast
Topic: Vines
Title: Thorny vine growing through hedge
Answered by: Nan Hampton and Joe Marcus

QUESTION:

In my hedge, a vine grows that has a bulbous root. It has large thorns up and down the vine. The leaves are shiny and grow all along the vine that is exposed to the sun. the vine grows up thru hedges and puts on leaves only after it is above the hedge. What can I use to kill it. I have scraped the outer layer off the stem/trunk and brushed on stump killer with little effect..I need help

ANSWER:

This sounds like Smilax bona-nox (saw greenbrier).  Your best for getting rid of it is to cut the vine near ground-level and paint the cut stem with concentrated herbicide such as Roundup.  You have to be very careful doing this, however, and not get the herbicide on any part of the hedge.  Also, please carefully read and follow the safety instructions on the herbicide container.

Smilax bona-nox

Smilax bona-nox

 

 

 

More Vines Questions

Identification of a plant that looks like a watermelon.
May 21, 2012 - A wild plant came up in my bed that looked like a watermelon plant. It had small yellow blooms and then marble balls formed with prickly thorns. The balls were in clusters. What kind of plant is i...
view the full question and answer

E-mailing a picture for Plant ID from Dexter KY
June 25, 2012 - Could I email a picture of a vine that is taking over my porch? Can't seem to find it anywhere. It is dark green and relatively shiny with 10 leaves on each stem.
view the full question and answer

Problems with crossvine from Semmes AL
January 06, 2013 - I have a 3 year old cross vine (tangerine beauty) and the leaves have started turning black and falling off the plant. I have two plants growing on the same pergola (opposite ends) and the second plan...
view the full question and answer

Trumpet Vine Dropping Buds
July 25, 2013 - My trumpet vine is dropping its buds before flowering. This happened last year as well. Do you know what is causing this and what I can do to prevent it?
view the full question and answer

How to propagate Scarlet leatherflower (Clematis texensis)
May 25, 2015 - How do you collect seeds for the scarlet leatherflower? I saw your answer on how to grow from seeds but I'm not sure how to collect the seeds. Also is it possible to grow the scarlet leatherflower...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center