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

Identification of shrub/small tree with small purple fruit
July 31, 2013 - Hi! I have a tree/bush that has come up on its own in the backyard. This year it set what looks like small purple plums. Is there any chance that they might be poisonous?
view the full question and answer

Toxicity of Peruvian Lilies (Alstroemeria sp) for food decoration
September 04, 2006 - Hi, I am trying to find out if I can decorate a cake using live alstroemeria laid on top of the icing. I would not want to eat the flower, just lay it on top to look pretty before removing and servi...
view the full question and answer

Dogs developing allergic skin problems in Waco TX
February 24, 2011 - We have 2 West Highland White terriers..since we moved 2 yrs. ago, they have developed TERRIBLE skin problems at our new home, about 5 miles from our old home, in Waco. What contact plants, shrub...
view the full question and answer

Vine non-toxic to alpacas and dogs from Fowler CA
June 29, 2012 - We have alpacas and would like to plant a flowering vine on a backyard fence that adjoins the pasture. We live in Central California so we have many hot days during the summer and would like a plan...
view the full question and answer

Is mulch from hackberry and chinaberry trees safe for flowerbeds?
September 17, 2014 - We had to remove several large hackberry and china berry trees. Is its mulch safe to use in garden and in flower beds?
view the full question and answer

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