Explore Plants

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
    
 

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
Not Yet Rated

Monday - March 25, 2013

From: Lawton, OK
Region: Southwest
Topic: Plant Lists, Poisonous Plants, Trees
Title: Safety of hyrbrid and non-native trees for dogs and horses from Lawton OK
Answered by: Barbara Medford

QUESTION:

Are Arrowwood Viburnum tree, Sargent Crabapple tree & the Washington Hawthorn tree safe for dogs & horses?

ANSWER:

First. we need to determine if the plants you are asking about are native. The Lady Bird Johnson Wildflower Center recommends only plants native not only to North America but to the area in which they are to be grown; in your case, Comanche County, OK.

Missouri Botanical Garden Sargent Crabapple - native range Japan. There are five members of the Malus (crabapple) genus native to North America, only Malus ioensis (Prairie crabapple) is native to Oklahoma, but this USDA Plant Profile Map does not show it native to southwestern Oklahoma. There are are 16 members of the genus Viburnum native to North America with the name "arrowwood" in the common name; of these, 3 are native to Oklahoma, but none really grow close to southeast Oklahoma. There are several other viburnums not native to North America at all, so we don't know which one you have. Crataegus phaenopyrum (Washington hawthorn) is native to North America but not to Oklahoma.

The point of all this is that we are going to give you some websites on which you can search for plants poisonous to dogs and horses, but it is much easier to search on them using the scientific names, as in Malus ioensis (Prairie crabapple).

The lists often are only plants native to North America, but ordinarily if you search on one genus name (malus, viburnum or crataegus) the information on the poisonous plants will be the same for all species of that genus. Here is our list:

ASPCA

University of Arkansas

University of Illinois   

Toxic Plants of Texas 

Poisonous Plants of North Carolina

University of Pennsylvania Poisonous Plants

Canadian Poisonous Plants Information System 

California Poison Action Line 

You should also check with your veterinarian to make sure some locally available plant has not been proved to be poisonous that is not on any of the lists.

 

 

From the Image Gallery


Prairie crabapple
Malus ioensis

Washington hawthorn
Crataegus phaenopyrum

More Plant Lists Questions

Plants for property in Connecticut adjacent to a salt marsh
June 10, 2012 - Hi - I live on property adjacent to a salt marsh. The salt marsh leads out to Long Island Sound. I would like to plant non-invasive native plants of Guilford, Connecticut. I do not know what plants ...
view the full question and answer

Low maintenance, shade tolerant groundcover for Pacific Northwest
August 09, 2012 - What's a good low maintenance, shade tolerant ground cover for the Pacific Northwest? It needs to have good erosion control, too.
view the full question and answer

Long Island Barrier Beach Plants
April 22, 2013 - I live on the south shore of Long Island on a barrier beach and am landscaping my property as a result of Sandy damage. I am going with a sand base, and I am looking for suitable trees and shrubs for...
view the full question and answer

Ground cover for Orange County, California
August 05, 2012 - What ground cover do you suggest for an Orange Co., CA, backyard with a steep slope in 3-4 hours of sun? Needs to grow fast to beat the weeds. Something pretty would be nice! Thanks
view the full question and answer

Groundcover for Orange County, Florida
April 14, 2012 - I live in Central FL (Winter Park)and I have a small, mostly sunny (no trees) backyard next to a large in-ground swimming pool which fills up with the leaves of my neighbor's oak trees. The backyard ...
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.