Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Friday - May 06, 2011

From: Washington, DC
Region: Mid-Atlantic
Topic: Poisonous Plants
Title: Broad leaved evergreens for DC
Answered by: Anne Bossart

QUESTION:

We are looking for a flowering evergreen shrub, native to the mid-Atlantic, that grows in part shade but will tolerate full sun. We have been researching rhododendrons and azaleas but are concerned about the toxicity of the plants to humans. We have seen a lot of information on their attractiveness and toxicity to animals but are these shrubs a problem to have around small children?

ANSWER:

We understand your concern and you are right that ingestion of Rhododendron maximum (Great laurel) can be dangerous.  Honey made fom the flowers can also be toxic.

Kalmia latifolia (Mountain laurel), another flowering broad leaved evergreen native to your area and suitable for your conditions is also toxic.  Both plants are members of the Heath Family.

That being said, both rhododendrons and mountain laurels are widely used as ornamental landscape plants and there are rarely problems, but if you think you cannot prevent your children from ingesting plant material, you should choose another plant.

If you decide to go with another plant, you can use our Native Plant Database to help with the selection.  Scroll down to Combination Search and select: DC/shrub/part shade and moist soil (if that is what you have) and the size you are looking for.  It will generate a list with links to detailed information pages and more images.  You will find the rhododendron and mountain laurel on that list.

 


Rhododendron maximum


Kalmia latifolia

 

 

More Poisonous Plants Questions

Pruning the leaves of Sago Palm.
March 10, 2010 - Is it a cardinal sin to remove all the sago palm branches? This winter they were so badly scorched by the cold that hardly a frond went unaffected. So I cut them all off as I needed to get around the...
view the full question and answer

Is it quantity that makes silver nightshade poisonous to people?
September 18, 2012 - I have a recipe for Asadero cheese that uses silverleaf nightshade and have eaten this cheese many times. Is it too much quantity that makes it poisonous to people?
view the full question and answer

Fruit and nut trees safe for horses.
May 11, 2015 - My husband and I just moved to Elgin. We have always wanted to grow fruit/nut baring trees but didn't take in to consideration that horses might eat them. We have never had land or horses before, s...
view the full question and answer

Curing plant rash
September 02, 2008 - I went walking in the woods a few weeks ago, and my leg swiped some kind of cactus or something. It scratched me up and I had to remove little white spines with tweezers. I developed an intensely itch...
view the full question and answer

Are black walnut and sugar maple poisonous to alpacas
June 09, 2008 - I have alpacas and wonder if black walnut or sugar maple are poisonous to them.
view the full question and answer

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