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
Not Yet Rated

Friday - March 26, 2004

From: Washington, DC
Region: Mid-Atlantic
Topic: Invasive Plants
Title: Smarty Plants on Invasive Plants
Answered by: Jil M. Swearingen, National Park Service

QUESTION:

How many plants are invasive?

ANSWER:

According to the Plant Conservation Alliance’s Alien Plant Working Group, about 1,100 plant species have been reported as being invasive in natural areas in the United States. This number represents an astonishing one-third or so of the exotic plant species established and self-reproducing in the wild. Some invasive species were planted intentionally for erosion control, livestock grazing, wildlife habitat enhancement, and ornamental purposes. Others have escaped from arboretums, botanical gardens, and our own backyards. Free from the complex array of natural controls present in their native lands, including herbivores, parasites, and diseases, exotic plants may experience rapid and unrestricted growth in novel environments.
 

More Invasive Plants Questions

Legality of using Chinese tallow seeds for Christmas decorations
December 07, 2008 - If tallow trees are on the noxious list, is it illegal to use the white berries for Christmas decorations?
view the full question and answer

Is Yaupon Invasive in the Austin Area?
March 24, 2011 - Is Yaupon Holly invasive in the Austin area? Should we be removing it from our yards and/or greenbelt spaces? Thanks for your input!
view the full question and answer

Ways of eliminating smilax bona-nox
December 16, 2008 - 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 a...
view the full question and answer

Care for indoor ivy from Carollton TX
January 26, 2012 - I have an indoor ivy that is on a pole. The pole is breaking, and I need to separate the ivy from the pole with the least amount of trauma to the plant. How should I do this? Thanks!
view the full question and answer

Winter weeds in Flower Mound TX
February 19, 2009 - My lawn is being overrun by winter weeds. How can I get rid of them? Should I wait until March when I put down weed and feed fertilizer?
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