Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

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

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

Saturday - October 26, 2013

From: Wildwood, MO
Region: Midwest
Topic: Poisonous Plants, Trees
Title: Plants Toxic to Horses
Answered by: Anne Van Nest

QUESTION:

I want to put planters on the front of my horse barn, which is also in the front field, so the horses could eat what is in it if they want to. I am looking to put a miniature pine tree in the planter. What do you suggest that's not poisonous to horses?

ANSWER:

Mr. Smarty Plants found three good lists of plants on the web that you should look at to get started on preparing your list of plants that are non-toxic to your horses. Take a look at  Toxic Trees: Keep Your Horses Safe at Pasture by Joanne Meszoly on the Equisearch Website, the Wikipedia article on Plants Poisonous to Equines and the ASPCA list of Toxic and Non-Toxic Plants for Horses.  Ponderosa pines (Pinus ponderosa) is listed as a poisonous plant to horses on the ASPCA resource, but they do have an extensive list of plants that are non-toxic including Canada hemlock (Tsuga canadensis) as an alternative conifer for your planter.

 

 

 

From the Image Gallery


Eastern hemlock
Tsuga canadensis

Eastern hemlock
Tsuga canadensis

More Trees Questions

Trees for a new home in Las Cruces, NM
October 06, 2009 - I've just purchased a brand new home in a sub-division in Las Cruces, NM and I'm looking for some landscaping advice. I come from upper-central Illinois, so I'm used to having trees pretty much al...
view the full question and answer

Problems with post oaks in Milam Co., TX
October 26, 2009 - I have an old ranch in Milam County, Texas on the Brazos River with several large, old Post Oaks. Recently a few of these grand old trees have lost large branches and two have died. One has died, poss...
view the full question and answer

Pests on Fan Tex Ash
July 30, 2015 - We planted a Fan Tex Ash last year on our property. It's doing very well, but there are a lot of large stink bugs, yellow jackets and red wasps on it daily. We cannot seem to find any information on ...
view the full question and answer

Quaking Aspens in Albuquerque
October 25, 2010 - How do quaking aspens fare in north east Albuquerque?
view the full question and answer

Groundcovers for Shade Under a Sweetgum
March 25, 2015 - I have 3 large sweetgum trees that produce so much shade each summer, and grass, even grass meant for shade, won't grow here. It's become a barren desert! I have English ivy but it only seems to gro...
view the full question and answer

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