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

Friday - February 20, 2009

From: Pflugerville, TX
Region: Southwest
Topic: Poisonous Plants
Title: Is Artemesia ludoviciana allelopathic?
Answered by: Barbara Medford

QUESTION:

I recently read that Artemisia ludoviciana is allelopathic to some other plants. I planted some last fall between a rusty blackhaw viburnum and a Mexican buckeye. Do you know whether it is phytotoxic to either of these? My viburnum has been thriving and I would not want to wait for it to show distress before pulling out the Artemisia.

ANSWER:

According to this USDA Natural Conservation Service website on Artemesia ludoviciana, it has no known allelopathic qualities. We did further research on Artemisia ludoviciana (white sagebrush), which is native to Texas and could find no indications that it had that ability. On the other hand, Viburnum lentago (nannyberry), although native to North America, is not native to Texas, so if it starts showing signs of distress, we don't think you can blame the Artemisia, but rather stresses caused by being non-native to your area.  Ungnadia speciosa (Mexican buckeye) is also native to Texas; if you were going to remove one of the three plants, we would vote for the Viburnum to go, as the Lady Bird Johnson Wildflower Center is focused on the use of plants native not only to North America but to the area in which they are being grown. 

Artemisia ludoviciana (white sagebrush)

Ungnadia speciosa (Mexican buckeye)

Viburnum lentago (nannyberry) - pictures


Artemisia ludoviciana

Artemisia ludoviciana

Ungnadia speciosa

Ungnadia speciosa

 

 

More Poisonous Plants Questions

Comment on poisonous sweet pea plant from Kalama WA
October 29, 2011 - No question, comment only. I am aware of the story of Christopher McCandless (Call of the Wild)and the belief that he was poisoned by ingesting part of the sweet pea plant; however I am curious what ...
view the full question and answer

Suitability of Carolina Cherry Laurel for Bulverde TX
October 24, 2012 - The local Home Depot is selling Carolina Cherry Laurel Trees. They look beautiful. Is this a good tree for Bulverde TX..20 miles north of San Antonio? Can it survive? Will it be a high maintenance...
view the full question and answer

Identification of plant with orange sap that glows at night
June 06, 2012 - I was just pulling up a plant and noticed that its sap was a kind of orange then I noticed it glowing orange at night. What kind of plant is this and is it dangerous?
view the full question and answer

Is Texas ragwort (Senecio ampullaceus) toxic to livestock?
May 05, 2009 - Mr. Smarty Plants, I have a question related to Texas Ragwort (Senecio ampullaceus): I am concerned about toxicity to livestock as well as interested in natural control methods. I was recentl...
view the full question and answer

Removing poison ivy in Cuba MO
August 27, 2011 - I bought a home with a huge bed of hybrid iris but the bed is thick with poison ivy. If I cover myself head to toe to prevent getting it is there a way to clean the tubers so they will not be poison? ...
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