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

Tuesday - June 05, 2012

From: Muskegon, MI
Region: Midwest
Topic: Poisonous Plants, Problem Plants, Trees
Title: Toxicity of catalpa wood?
Answered by: Guy Thompson

QUESTION:

Is the sawdust from cutting up a catalpa tree or the smoke from burning the wood toxic? Thank you,

ANSWER:

I have found a number of Internet sources that discuss the possibility of toxicity of Catalpa speciosa (Northern catalpa), but there seems to be little evidence to support the allegation.  The US Dept. of Agriculture web site does not mention toxicity as a problem.  But to be on the safe side, it might be advisable to wear a mask when Catalpa wood dust or fragments are in the air.

 

From the Image Gallery


Northern catalpa
Catalpa speciosa

More Poisonous Plants Questions

How toxic are wild cherries for horses?
June 11, 2009 - I purchased a beautiful piece of heaven in the rural suburbs. I have three horses and grow my own hay. Unfortunately, I have just learned the woods surrounding my field is lined with Black Walnut, Wil...
view the full question and answer

Plant identification in Georgia
September 14, 2011 - I saw the same question that I was going to ask about the plant that folds its leaves at dusk, with sparse branches, rapid growth, small yellow flowers and long (whisker-like, but do not appear to be ...
view the full question and answer

Alternative to Carolina Cherry Laurel in Cedar Park TX
May 10, 2010 - I love the look of the Carolina Cherry Laurel but hear that its berries are poisonous and can harm my dog if he eats them. What are some other alternatives that have a similar look; I'm looking for ...
view the full question and answer

Local native plant for grave marker in Washington
December 30, 2005 - Dear wildflower expert, Our friend’s dog died, and is buried in western Washington, near the town of Monroe. My wife is from central Texas, and thought a Texas perennial would be a nice marker. ...
view the full question and answer

Dealing with poison ivy
April 22, 2008 - Suggestions for eradicating Poison Ivy? I have just a small growth in my backyard. Thanks -
view the full question and answer

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