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?

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
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

Saturday - October 03, 2009

From: Gloucester, VA
Region: Mid-Atlantic
Topic: Poisonous Plants
Title: Are leatherleaf viburnum or Carolina Sapphire toxic to horses?
Answered by: Nan Hampton

QUESTION:

Are Leather-leaf Viburnum or Carolina Saphire toxic to equine? I would like to plant them near the fence line.

ANSWER:

Mr. Smarty Plants found neither Cupressus arizonica var. glabra (Carolina Sapphire), a cultivar of Cupressus arizonica (Arizona cypress) that was developed at Clemson University, nor Viburnum rhytidophyllum (leatherleaf viburnum), a native of China, listed in any of the toxic plant databases listed below:

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

This doesn't guarantee that the plants are not toxic to horses, but it is a pretty good indication that they are safe.

As an alternative for the non-native leatherleaf viburnum from China, Mr. Smarty Plants would like to suggest several species of viburnum that are native to Virginia. Here are several recommendations:

Viburnum acerifolium (mapleleaf viburnum)

Viburnum dentatum (southern arrowwood)

Viburnum nudum (possumhaw)

Viburnum prunifolium (blackhaw)

Viburnum rufidulum (rusty blackhaw)


Viburnum acerifolium

Viburnum dentatum

Viburnum nudum

Viburnum prunifolium

Viburnum rufidulum

 

 

 

More Poisonous Plants Questions

Injury while pulling weeds in Chandler TX
November 18, 2009 - I stabbed my self this last weekend when pulling roots from a bed so i'm not sure what it was. At the time it was a sharp pain so I pulled off my glove to look at it,barely scratched the skin so on I...
view the full question and answer

Trimming Texas mountain laurel in Austin
August 27, 2009 - Is there a specific time to trim established mountain laurels? Should I cut off the dried seed pods since they are weighing down the branches?
view the full question and answer

Source for a soapberry in Pittsburgh PA
June 22, 2013 - Flower box Where can I buy a soapberry tree in Pittsburgh Pennsylvania?
view the full question and answer

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...
view the full question and answer

Skin irritation caused by hydrangea in Monroe GA
July 06, 2009 - Can Queen Anne Lace hydrangea cause a skin irritation such as poison ivy or oak? I picked up a branch that had broken off to discard and the following day I have a place on my arm about six inches lon...
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.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center