Native Plants
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.
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.
rate this answer
Sunday - May 16, 2010
From: Denver, CO
Region: Rocky Mountain
Topic: Poisonous Plants
Title: Is arborvitate (Thuja sp.) safe for horses
Answered by: Nan Hampton
QUESTION:
Is arborvitae poisonous to horses? I want to plant it along the horse pasture. If it is poisonous, what are similar plants that are not poisonous to horses?ANSWER:
Neither Thuja plicata (western arborvitae) nor Thuja occidentalis (eastern arborvitae) appear in any of the toxic plant databases listed below:
ASPCA Toxic and Non-Toxic Plant Lists—Horses
Poisonous Plants of North Carolina Cornell University Plants Poisonous to Livestock University of Pennsylvania Poisonous Plants Canadian Poisonous Plants Information System This is a pretty good indication that it would be safe to plant in your horse pasture.
More Poisonous Plants Questions
Fast-growing non-invasive shrub for privacy fence in Sugar Land TX
December 06, 2011 - I live in South Texas in Sugar Land. I was going to plant oleanders in my backyard along the fence as a privacy hedge, about 20 feet from my house. However, I was told they were a bad choice becaus...
view the full question and answer
Plant identification from Peoria IL
July 10, 2009 - I removed a plant from our workplace that employees were afraid was hallucinogenic seeds. Central Illinois. Very purple stem. Purple flowers. Black seeds. Any ideas?
view the full question and answer
New house plant in pot in Chevy Chase MD
May 07, 2010 - Is it possible for one house plant to eventually die in the pot while a completely different plant grows in its place? The new plant looks similar to the potted plant next to it but it is not quite t...
view the full question and answer
Is Fern-like Plant with White Flower Poison Hemlock?
May 06, 2014 - I have a fern-like plant which produces white flowers that uncurl from the stem as the plant starts to grow. Is this poison hemlock?
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
| Support the Wildflower Center by Donating Online or Becoming a Member today. |