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?


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
Not Yet Rated

Friday - March 09, 2007

From: Harlingen, TX
Region: Southwest
Topic: Poisonous Plants
Title: Native plants toxic to horses
Answered by: Nan Hampton


I would like to landscape with native plants (I live south of you in Harlingen, TX) but I am concerned some might be dangerous to my horses. Do you have a list of either safe native plants or native plants to avoid with horses? Thanks.


There are several databases that address plants poisonous to humans and other animals. Here are three very good ones:

Cornell Poisonous Plants Informational Database
Indiana Plants Poisonous to Animals
Illinois Plants Toxic to Animals

There is also an excellent book, Toxic Plants of Texas: Integrated Management Strategies to Prevent Livestock Losses by Charles R. Hart and others, 2003, published by the Texas Cooperative Extension that gives plant descriptions and photographs, symptoms of poisoning by the plant, and management strategies for the plant.


More Poisonous Plants Questions

Hedgerow plants non-toxic to horses
April 07, 2012 - What would be a good, fast growing, hedgerow plant that is NON-POISONOUS TO HORSES? Thank you.
view the full question and answer

Plant ID from Villa Hills KY
April 21, 2013 - Hello I have this plant but I don't know what it is. I want to know if it's edible or what it is. I think it's catnip.
view the full question and answer

Cake decorations with flowers
February 25, 2009 - Can I decorate a cake with bluebonnets, lavender or mountain laurel blooms?
view the full question and answer

Plants in wheelbarrow dying in Jacksonville, FL
June 22, 2011 - I planted a wheelbarrow with daisies, petunias and black and blue salvia. the salvia is thriving, but the others died. Is the salvia toxic to them?
view the full question and answer

Agave attenuata Poisonous?
March 12, 2015 - Is Agave attenuata (foxtail agave) poisonous to horses or humans?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2015 Lady Bird Johnson Wildflower Center