En EspaŅol

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
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
rate this answer
1 rating

Friday - May 14, 2010

From: Lakewood, CO
Region: Rocky Mountain
Topic: Poisonous Plants
Title: Is the Magnolia 'Ann' safe for horses
Answered by: Nan Hampton


I bought a magnolia "ann". Will it hurt my horses to eat any part of it?


According the U. S. National Arboretum, Magnolia 'Ann' is a hybrid of Magnolia liliflora 'Nigra' x Magnolia stellata 'Rosea'.  M. liliflora is a native of China and M. stellata is a native of Japan.

M. stellata is on the non-toxic portion of the Toxic and Non-Toxic Plant Lists—Horses from the ASPCA and no Magnolia species are on the toxic portion of this list.  Additionally, no Magnolia species occur on any of the following poisonous plants databases:

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 


More Poisonous Plants Questions

Is wild foxglove poisonous to dogs from Liberty TX
May 05, 2012 - Is penstemon cobaea (wild foxglove)poisonous to pets, specifically dogs. I was thinking about adding this to my native Texan wild flower section of my backyard.
view the full question and answer

Plant ID of unknown purchased plant from Boise ID
June 24, 2012 - Hi! I bought a tree that the sales person didnt know what it was. I thought it was a cherry tree and now after about 3-4 yrs I know it is but..How do I know if it is an ornamental tree or real fruit t...
view the full question and answer

Is it quantity that makes silver nightshade poisonous to people?
September 18, 2012 - I have a recipe for Asadero cheese that uses silverleaf nightshade and have eaten this cheese many times. Is it too much quantity that makes it poisonous to people?
view the full question and answer

Defense against poison ivy from The Woodlands TX
March 24, 2014 - Hi and thank you in advance for your help. My husband is allergic to Poison Ivy, Oak, Sumac, or something in our yard. We need someone who is very knowledgeable to come and identify any poisonous pla...
view the full question and answer

Is non-native Ixora poisonous to horses?
June 26, 2013 - My horse was eating an ixora bush at a park in south florida. Is the Ixora shrub poisonous to horses?
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
© 2015 Lady Bird Johnson Wildflower Center