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
1 rating

Monday - March 02, 2009

From: San Antonio, TX
Region: Southwest
Topic: Pruning, Seasonal Tasks
Title: Removal of Carolina Jasmine in San Antonio
Answered by: Barbara Medford

QUESTION:

We are attempting to permanently remove large old-growth Carolina Yellow Jasmine, Gelsemium sempervirens bushes from our property. The bushes are cut down. Any suggestions for stump/root removal (mechanical and/or chemical) would be much appreciated. We love the LBJWC; just joined last year! Thanks for all you do there. :)

ANSWER:

Thanks for the nice words; we love what we do here, too.

Although native, you obviously already know that Gelsemium sempervirens (evening trumpetflower) can be invasive and persistent. It is a very tough plant, with no particular insect or disease enemies, and will continue  to attempt to survive. Preventing it from seeding this year was your first step, since you have already taken out the bushes. Constant attention, watching for suckers and yanking them out, is the next step. Stump grinding is probably not practical in an enclosed area, but you could certainly consult with someone who does this and see if it's feasible. You can hand dig along the root system, cutting it at intervals to try to starve the plant, but this is going to take a while. Even though the bushes have been cut down, try making a fresh cut as close to the soil as possible, and immediately painting the fresh cut, within 5 minutes before it seals itself, with an herbicide recommended for this purpose. In other words, attacking on several fronts will finally discourage the plant, but never relax, it won't go away voluntarily.

 

 

More Pruning Questions

Pruning Agarita in the Winter
February 18, 2012 - I recently came upon a small grouping of agarita plants that had been somewhat choked by cedar. Having removed the cedar I noticed there were quite a lot of dead branches within the shrubs. Would Fe...
view the full question and answer

Non-native pomegranate failing to fruit from Highland Village TX
October 20, 2012 - Last spring I planted a pomegranate tree (type: Wonderful) which is supposed to produce edible fruit. It had 5 or 6 absolutely beautiful blooms, but each of them dropped off and no sign of fruit. Is...
view the full question and answer

How to prune wild mustang grape vines.
July 11, 2011 - Now that my mustang grapes are harvested. When can I trim them out of the tree top and redirect them to an arbor where I can reach them next year? The main vine is at least 3" across. The vines from...
view the full question and answer

Problems with Texas Mountain Laurel in Dallas
May 04, 2010 - I have a Texas Mountain Laurel that is about 3 years old. When I bought it 2 summers ago, it was about a foot high. Now it is over 6 feet. It seems to have grown so fast that the branches can't ke...
view the full question and answer

Live oak leaves not dropping from Austin
April 29, 2014 - We had a 65 gallon live oak planted last October. We watered it regularly and it was green all through the winter. In March the leaves started to turn brown but never dropped, as they should have. ...
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