En Español

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

Wednesday - May 27, 2009

From: Olathe, KS
Region: Midwest
Topic: Non-Natives
Title: Are non-natives, Dappled willow and Kousa dogwood, toxic to horses?
Answered by: Nan Hampton

QUESTION:

Are dappled willow trees/bushes or kousa dogwood trees toxic to horses?

ANSWER:

First of all, our focus and expertise here at the Lady Bird Johnson Wildflower Center are with plants native to North America.  Neither Salix integra 'Hakuro-Nishiki' (Dappled willow) nor  Cornus kousa (Kousa dogwood) are North American natives; both are Asian natives.  Nevertheless, Mr. Smarty Plants can guide you to several toxic plant databases—some specific for horses and some general—that you can use to find out if your plants are toxic to horses. A quick search in the four last databases on the list below (the general ones) did not show either of the species above, nor were there any entries at all under the two genera (Salix or Cornus).  You should search through the horse toxic plant databases for both plants and keep these databases in mind when you have questions about other plants.

10 Most Poisonous Plants for Horses from EquiSearch.com

Poisonous Plants from Trailblazer Magazine

Toxic Plants: Horses from the ASPCA

Horse Nutrition: Poisonous Plants from Ohio State University

Poisonous Plants of North Carolina

Cornell University Plants Poisonous to Livestock

Texas Toxic Plant Database

University of Pennsylvania Poisonous Plants

 

More Non-Natives Questions

Willow woes in Philadelphia, NY
August 22, 2010 - I have a 2 yr old willow; it is August and it looks like the tree has gone dormant, is this normal?
view the full question and answer

Pruning of non-native weigela and roses
June 29, 2009 - I have a Red Prince wiegala (spelling?) and while most of the branches have leaves and red flowers, there are some branches that never produced any leaves or flowers. Should I prune them? If so, can...
view the full question and answer

Lists of edible plants in region of Pennsylvania for school project
September 12, 2006 - Please Help! I'm a grade four teacher in Philadelphia. My students and I are assigned a theme project that involves listing edible plants that grow in our region. Can you recommend a web site(s)...
view the full question and answer

Evergreen non-native herbs for Bastrop TX
August 26, 2010 - I'm looking for evergreen herbs for Bastrop Texas. I planted an herb garden in the spring of 2009, but mostly all of them died in the winter. Rosemary, Tarragon and Sage made it. thank you!
view the full question and answer

Problems with mature Blue Agave in Kenya
December 09, 2012 - I have a mature Agave plant and there is a thin black liquid that looks like oil starting to appear on the leaves. The plant plant seems to be dying (from the bottom up). (The plant is a blue Agave an...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center