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 Trees Questions

Trimming of Escarpment Oak from Austin
May 18, 2014 - We have a 2-year-old quercus fusiformis in our front yard and have been advised by some people that we need to remove the bottom branches and trim the ends of the branches that are hanging far down. ...
view the full question and answer

Failure to thrive of newly planted magnolia in Irving TX
November 10, 2009 - I planted four Little Gem Magnolia (Magnolia Grandiflora) in my back yard during first week of October 2009. One of them seem to be dying because its leaves have turned very brown and the leaves are c...
view the full question and answer

Can I move my Dwarf Orange tree from California to Florida?
April 12, 2012 - I am moving from California to Florida and have a small dwarf orange tree. Can I bring it with me to Florida? Thanks!
view the full question and answer

Groundcovers for Shade Under a Sweetgum
March 25, 2015 - I have 3 large sweetgum trees that produce so much shade each summer, and grass, even grass meant for shade, won't grow here. It's become a barren desert! I have English ivy but it only seems to gro...
view the full question and answer

Damage from Hurricane Irene in Burgaw, NC
August 27, 2011 - We live in Burgaw, NC and have begun the clean up efforts of Hurricane Irene which has made a full grown crape myrtle lean to one side. Its a very large tree and it is not uprooted. Is there anyway ...
view the full question and answer

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