Rent Shop Volunteer Join

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

Monday - October 26, 2009

From: San Diego, CA
Region: California
Topic: Poisonous Plants
Title: Is hopseed bush poisonous to horses in San Diego
Answered by: Barbara Medford

QUESTION:

I need to plant a hedge to block unwanted neighbors and shield the horse corral from the house. I love the hopseed bush for its growing habits and color, especially the purple hopseed. I need to know if it is poisonous to horses. Thanks

ANSWER:

Dodonaea viscosa (Florida hopbush), native to North America, is shown on the USDA Plant Profile for this plant as growing in one small area just north of San Diego County. You might want to read this University of Florida Coperative Extension Service webpage on Dodonaea viscosa to learn if you have the proper growing conditons. That site mentions the cultivar 'Purpurea', which is probably the one you are talking about. Below is a list of databases you can check to find out if a plant you are interested in is toxic to horses. Just because a plant is not on these lists does not guarantee it is not poisonous to horses, but you should feel fairly safe after checking them.

Poisonous Plants of North Carolina

Cornell University Plants Poisonous to Livestock

Toxic Plants of Texas 

University of Pennsylvania Poisonous Plants

Canadian Poisonous Plants Information System

Toxic Plants: Horses from the ASPCA

We checked all of these using the scientific name Dodonaea viscosa to search and found it in none of them.

From our Native Plant Image Gallery:


Dodonaea viscosa

Dodonaea viscosa

 

 

More Poisonous Plants Questions

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...
view the full question and answer

Are globe mallows (Sphaeralcea spp.) harmful to dogs
May 20, 2010 - My dogs eat the wild globe mallow plants in my yard. Could that be harmful to them?
view the full question and answer

How to Remove Pokeweed in Greenburg, Pennsylvania
September 10, 2010 - Last year I purchased a home with 3 acres of land and it is infested with pokeweeds,Phytolacca americana! I have small children and know this is a poisonous plant. Could you please tell me a way to ...
view the full question and answer

Are oleanders poisonous?
July 18, 2008 - Are Oleanders poisonous?
view the full question and answer

Will a barrier hedge of Agarita cause any problems for horses and cattle?
January 28, 2009 - Will planting a hedge of Agarita (Mahonia trifoliolata) at the fence line in my blackland prairie pasture cause any problems for my horses and cattle. I am trying to create a sound and sight barrier ...
view the full question and answer

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