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

Sunday - March 28, 2010

From: Eagle Point, OR
Region: Northwest
Topic: Poisonous Plants
Title: Are Chanticleer flowering pears toxic to horses?
Answered by: Nan Hampton

QUESTION:

Are Chanticleer flowering pears toxic to horses?

ANSWER:

Pyrus calleryana 'Chanticleer' (Chanticleer pear) is one of several cultivars of an ornamental pear native to Japan and Korea.

I could not find any information specific to the Chanticleer pear and the only poisonous plants lists were from Washington State.  On a list called "Poisonous Plants of Washington State" from Cowlitz County Washington, Pyrus spp. are listed and the list states that the seeds, leaves and bark are poisonous to humans, cattle, horses, sheep, goats, swine, poultry, but not to pets. (This seems a bit strange to me that it is poisonous to all others, but NOT pets!)  The poisonous effects are said to be:

"Rapid breathing leading to low and difficult breathing, anxiety, excitement, confusion, headache, vomiting, dizziness, can cause death."

Pierce Conservation District in Pierce County, Washington has a similar list, "Common Poisonous Plants of Western Washington Which Affect Livestock", but have included the Pyrus spp. with the Prunus spp. (apricots, peaches, cherries, etc.) and Malus spp. (apples).

None of the other poisonous plant databases listed below list any Pyrus species, but all or them list Prunus species. Only two of the lists below (ASPCA and Poisonous Plants of North Carolina) show Malus spp.

Toxic and Non-Toxic Plant List—Horses 

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

So, given this information, I don't know exactly how to advise you. However, I think caution would be the best advice.  If your horse is in the pasture with the tree, you should consider the size of the enclosure and how much natural food is available for the horse.  If there is lots of room with adequate forage for the horse, it probably won't interact with the tree or any of its parts to any extent.  If it is a small inclosure with little other greenery, then it is probably not a good idea for the tree to be there.  If the pear is outside the enclosure but has limbs that hang over the pasture and drop leaves or fruit, you probably want to remove those regularly and keep close watch to see that the horse is not spending a great deal of time in the area of the tree.


 



 

 

More Poisonous Plants Questions

Can the buds and flowers from my Rhodendron tree be toxic to my puppy? Yes
March 23, 2009 - I recently got a new 7 week old puppy that keeps trying to play with and eat buds and flowers off my Rhododendron tree. Could this be toxic to him?
view the full question and answer

Smarty Plants on poisonous plants
August 03, 2001 - Do you have a list of plants that are poisonous to children and pets?
view the full question and answer

Muhlenbergia dumosa safe for horses from Austin
May 13, 2014 - Is Muhlenbergia dumosa safe for horses? Will horses eat it? I have a client who has a mini-horse who visits her property on occasion, and I want to ensure that what I plant is both safe for the hors...
view the full question and answer

Is Poison ivy always rooted in the ground?
November 11, 2015 - Does Poison ivy on a tree always start at the ground and climb up the tree or can it start producing its vine and leaves by itself at the top of the tree or middle?
view the full question and answer

Non-toxic plants for dog yard from Freeport PA
June 24, 2012 - I'm looking for wildlife-friendly native plants that aren't toxic to dogs. I have a place for some small shrubs and/or flowers. And a climbing vine that I could train on a trellis would work espec...
view the full question and answer

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