Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

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

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 09, 2007

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

QUESTION:

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.

ANSWER:

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

Lupinus perennis Poisonous to Dogs?
April 14, 2013 - I have heard that some lupine varieties are quite poisonous to dogs, others are not. Do you know if it's safe for my dogs if I plant and encourage Lupinus perennis in my NH meadow?
view the full question and answer

Growing a Texas Mountain Laurel in Pennsylvania
May 20, 2012 - Can I grow a Texas Mt. Laurel in Lancaster, PA?
view the full question and answer

Do palm trees put off a toxic smoke when burnt?
December 09, 2008 - do palm trees put off a toxic smoke when burnt
view the full question and answer

Non-native pothos ivy from Houston
May 30, 2013 - My pothos devils ivy is about 5 years old and grows outside. A couple of years ago its leaves became spectacularly large, like 12" wide and its stalk about 1 - 2" wide. A couple of years ago i gui...
view the full question and answer

Is Thalia dealbata toxic to dogs?
May 16, 2011 - A pond in a park frequented by dogs contains Thalia dealbata and I have seen numerous dogs eating the roots with relish, which we discourage, of course. They seem to really enjoy it though. Aft...
view the full question and answer

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