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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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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.


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Getting rid of wild plums (Prunus angustifolia)
July 28, 2008 - When I bought my land, there was a humongous thicket of wild plums (Prunus angustifolia) approx 10 ft high and covering 5-10 acres. I raise goats, and have known that wild plums (the leaves) can cause...
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Shade trees not toxic to dogs in Kempner TX
August 21, 2013 - Dear Mr Smarty Plants, we are looking for shade trees to plant around our home in Kempner, Tx. I saw another family that asked a similar question but we have dogs and holly or oak trees are toxic (my...
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Can foxglove poison be transmitted to the soil and taken up by another plant
May 29, 2012 - Hi Mr. Smarty Plants, Recently I discovered a Foxglove that had come up after being planted 2 or 3 yrs ago. Next to it I have some medicinal Feverfew growing. (They were so close together I suspec...
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Is Lemon Cypress toxic?
August 15, 2012 - Is the Lemon Cypress toxic?
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