Native Plants
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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
rate this answer
Sunday - April 29, 2012
From: Austin, TX
Region: Southwest
Topic: Invasive Plants, Vines
Title: Eradicating trumpet vine runners in Austin
Answered by: Barbara Medford
QUESTION:
How do I eradicate trumpet vine runners from my lawn? Will it kill my pecan tree?ANSWER:
Campsis radicans (Trumpet creeper) is a native, colorful flowering vine, growing natively through most of North America, but most invasive in the Southeast. Follow the plant link to learn about the risks of having the plant in your yard.
Also, Dave's Garden, which is a forum, has 64 negative comments on the plant.
From Floridata, more comments on invasiveness of Campsis radicans.
Previous Mr. Smarty Plants answer
Conclusion: How to keep it from being invasive? Don't plant it and don't let it into your garden from anywhere else. It can definitely harm your pecan tree if it gets up in it and covers the leaves, preventing sunlight from reaching those leaves and also preventing photosynthesis, whereby the plant uses the energy of the sun to produce food for the plant as well as oxygen for our air.
Obviously, you already have it. We can pass along some of the suggestions for controlling it. First; patience. Even if you never get rid of it completely, it will only get worse if you don't stay after it year after year. Second: herbicide. Do NOT spray herbicide, this will only damage the tree, other desirable plants in your garden and the environment, but won't get close to all those Trumpet Vine roots underground. You say it's in your lawn-mow it, low and regularly. Mowing won't kill it, but it will slow it down. Get a bottle of an undiluted wide spectrum herbicide and some disposable sponge brushes. With garden nippers, clip off the stems close to the ground and immediately paint the cut edge of the stem in hopes you get it into the system of the vine before the cut place heals over in self defense. This makes it possible for the herbicide to actually get to the roots. Sometimes. If you have big roots going up a tree, by all means, pull them away, cut the vine and, again, paint the fresh cut with the herbicide.
The only way to keep a plant from being invasive is to never plant it.
From the Image Gallery
More Invasive Plants Questions
Alternate native plants for bamboo as a privacy screen in Austin, TX.
July 26, 2011 - Can you recommend a bamboo that I can plant, acting as a privacy screen, reaching at least 10'-12'? We are looking for a bamboo that does not spread, and can take the afternoon sun. It will be pla...
view the full question and answer
How Can I Tell an Invasive Thistle from a Native
May 01, 2012 - Mr Smarty Plants,
I have some thistles coming up in my yard. I'd like to keep them if they are native, but not if they are invasive or non-native. How can I tell? My yard is a wild area in West Lak...
view the full question and answer
Replacement for grass under non-native weeping willow from Yorba Linda CA
April 24, 2012 - What would be a good replacement for the grass currently growing under a weeping willow? Something requiring low maintenance, the problem is with mowing over and around the roots.
view the full question and answer
Are non-native Chinese pistache poisonous to alpacas from Galt CA
October 07, 2012 - Are Chinese Pistachio trees poisonous to alpacas?
view the full question and answer
About Salvia superba
January 09, 2006 - About 10 years ago, nurseries were offering a small salvia, called salvia superba or meadow sage. A few years later, "May Night" and "Blue Hill" appeared on the market similar to this first sal...
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |