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?


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

Monday - September 27, 2010

From: Payson, AZ
Region: Southwest
Topic: Cacti and Succulents
Title: Are Agave Seed Pods Poisonous
Answered by: Mike Tomme


Are the seed pods, found in clusters, hanging from century plants(agave) poisonous to kids or dogs? They are large, light green, and shaped like fat bananas.


A number of plants have the common name Century Plant. Most, if not all, are in the genus Agave. The most commonly used century plant in home landscapes is Agave americana (American century plant). See the photo below to make sure this is the plant you are asking about.

Colorado State University has an online database of poisonous plants. Entering "agave" into the search box yielded only Nolina texana (Texas sacahuista) which is a member of the agave family, but normally does't go by the common name century plant. In addition the USDA provides information about plant toxicity in the plant profiles on their web site. Their description of the characteristics of Agave americana lists toxicity as "none". 

So, it seems that the fruit of Agave americana is not poisonous.


From the Image Gallery

American century plant
Agave americana

More Cacti and Succulents Questions

How to Control White Fungus on Prickly Pear Cactus?
July 04, 2013 - Is there any kind of spray for our prickly pear that will help with the white fungus that has appeared on it?
view the full question and answer

Failure to bloom of red yucca from Lago Vista TX
April 09, 2013 - I am in Lago Vista - trying to find out why I can't get my red yucca to bloom. The first year they were great and now after two or three years - no measurable spikes have shown up. HELP!
view the full question and answer

Cutting bloom stalk of century plant in San Diego CA
June 25, 2010 - My 28 yr old century plant will bloom soon. I understand it will die. Will this 30 ft stalk then likely fall? Will I need to call someone to cut the dead stalk? The base is nearly 7 ft by 6ft - n...
view the full question and answer

Why is my Agave suffering in Mesa, Arizona?
August 06, 2009 - I live in Mesa AZ, and have an agave that we planted 7 years ago. It grew like crazy with hardly any care whatsoever, until I cut off some of the bottom leaves and 'pups' about a month ago. Recently...
view the full question and answer

Twist-leaf Yucca flowering in Burnet County, TX.
June 16, 2015 - I recently moved to Burnet County and our property is full of twist leaf yuccas which are now blooming, but not all are blooming. Why do some twist leaf yuccas bloom and others don't? Are they m...
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.
© 2015 Lady Bird Johnson Wildflower Center