Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Tuesday - June 22, 2004

From: Austin, TX
Region: Southwest
Topic: Invasive Plants
Title: Smarty Plants on Invasive Plants
Answered by: Damon Waitt

QUESTION:

What is an invasive plant?

ANSWER:

An "invasive species" is defined as a species that is non-native (or alien) to the ecosystem under consideration and whose introduction causes or is likely to cause economic or environmental harm or harm to human health. (Executive Order 13112).

Sometimes you will see invasive species referred to as exotic, alien, or non-indigenous species. The problem with these names is that they only refer to the non-native part of the definition above. Many exotic or alien species do not cause harm to our economy, our environment, or our health. In fact, the vast majority of "introduced" species do not survive and only about 15% of those that do go on to become "invasive" or harmful.

An invasive species grows/reproduces and spreads rapidly, establishes over large areas, and persists. Species that become invasive succeed due to favorable environmental conditions and lack of natural predators, competitors and diseases that normally regulate their populations.

 

More Invasive Plants Questions

More on oak problems in Carrollton TX
April 04, 2011 - Thank you for answering me, I will contact a specialist to see if we can determine the cause. but since writing you we have pulled down a small twig to see the leaf more closely, it is more of a reddi...
view the full question and answer

Eliminating smartweed from pasture in Oswego NY
August 28, 2009 - How do I get rid of smartweed in my pasture?
view the full question and answer

Eliminating Arrow Weed from property in Mohave Valley AZ
July 22, 2010 - How do I get rid of Arrowweeds on my property?
view the full question and answer

Dead-appearing Royal Paulownia trees in Manteno, IL
May 02, 2009 - Have two Royal Paulownia trees two years old.Last fall all leaves fell off. Have two eight foot toothpicks. This spring, nothing happening.Are they dead or will they come back? If they come back what ...
view the full question and answer

Getting rid of non-native, invasive English Ivy from Davidsonville MD
March 19, 2014 - Just moved and need to rid the well established Ivy planted on the steep slope area around the back and side of the house as it is taking over the bushes on the top and trees in forested area at botto...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.