En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Are seeds of trumpet vine poisonous from Creston BC

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
Not Yet Rated

Thursday - September 12, 2013

From: Creston, BC
Region: Canada
Topic: Poisonous Plants, Vines
Title: Are seeds of trumpet vine poisonous from Creston BC
Answered by: Barbara Medford

QUESTION:

Are the seeds in the trumpet vines pods poisonous to humans or can I use them as dried beans? I have one plant that covers most of my house's south wall. It is a very established plant.

ANSWER:

For openers, this USDA Plant Profile Map does not show Campsis radicans (Trumpet creeper) growing in British Columbia at all, but only Manitoba in Canada. That doesn't mean it doesn't grow in British Columbia, it just hasn't been reported growing there. If you follow the plant link above to our webpage on the plant, you will see that no mention of poisonous seeds is given or, indeed, any poisonous part on the plant. However, this statement is included on that page: 

"Warning: The sap of this plant can cause skin irritation on contact."

So, we decided to search a little further as to the edibility of the beans (seeds) of this plant. We discovered that while the seeds grew in pods, Campsis radicans pods produced numerous, papery, and small seeds (696 seeds/pod) on average. So, it is not really a bean, per se, like members of the Fabiaceae family would produce. See the second and third pictures, below, from our Image Gallery, to see what the Trumpet Creeper seed pods and seeds actually look like. Except for the warning about the irritation of the sap, we could find no indication that the plant had any poisonous parts, but we don't think these seeds would produce a very tasty batch of beans like lima or pinto beans.

 

From the Image Gallery


Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

Trumpet creeper
Campsis radicans

More Poisonous Plants Questions

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

Shrubs not toxic to cattle in NJ
December 09, 2013 - I am working to rejuvenate the hedgerows on a farm in New Jersey by removing invasive plants and planting native shrubs. How do I find out which native shrubs are toxic to cattle and should not be pl...
view the full question and answer

Cutting back non-native oleanders affected by freeze in Austin
January 30, 2010 - After the last hard freeze makes my oleanders look dead. Can I cut them down to the ground this time of year?
view the full question and answer

Plants to replace poison ivy and brush
June 23, 2008 - I am right next to a highway in Paradise, CA 95969. I am having brush and poison oak removed in that area and want to plant something fast growing and draught resistant. I am thinking about Oleander...
view the full question and answer

Are palm tree seeds toxic?
July 08, 2011 - Are palm tree seeds toxic to other plants? I have palm trees around my pool and it seems that nothing will grow very good where the old seeds are in the ground.
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