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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.

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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.

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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!

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Saturday - March 05, 2016

From: Corpus Christi, TX
Region: Southwest
Topic: Herbs/Forbs
Title: Getting rid of Mexican Petunia in Chorpus Christi, TX
Answered by: Jimmy Mills

QUESTION:

What is the best way to get rid of unwanted Mexican Petunia that keeps spreading to unwanted areas of my flower beds?

ANSWER:


Mexican Petunia is known as  Ruellia tweediana or Ruellia simplex or Ruellia brittonia,  and is commonly used as an ornamental. Some gardeners learn too late that it is a very invasive plant.

This link to the University of Florida  gives a comprehensive look at the taxonomy,  as well as its biology, and measures to control its growth.

HGTV  offers some advice about dealing with this plant.

This previously answered Smarty Plants question  also has suggestions for solving your problem.

 

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