Rent Shop Volunteer Join

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
3 ratings

Wednesday - December 02, 2009

From: Denham Springs, LA
Region: Southeast
Topic: Cacti and Succulents
Title: Does the tip of the agave contain poison from Denham Spring LA
Answered by: Barbara Medford

QUESTION:

I bent over to pick something up and got stabbed in the head with the point of a agave plant. It is about 15 years old and I measured the point-it is right at an inch long. My head did bleed and it burns even ofter fifteen or twenty minutes. Is this a poisonous plant and should I contact my doctor or just wait till I feel anything out of the ordinary?

ANSWER:

We're going to assume you have an Agave americana (American century plant) or closely related native agave. We don't have to tell you that these plants know how to defend themselves, but we don't think you've been poisoned. When we are asked about removing or pruning agaves, we always advise goggles, long sleeves, long pants and heavy leather gloves, because there is a liquid that can be released by cutting the leaves which can be very irritating. We also advise those that are planning to plant agaves that they clip off those formidable tips that might be in contact with passers-by, including the gardener, children or pets.  On the other hand, we are not doctors, and we can't see the wound. We are assuming you washed the wound, to avoid any pollutants that might have been on the tip getting into your system. However, we still think you should contact your doctor, tell him what we told you, make sure you know if any of the spine is still in your head, and if it is still burning. The doctor might want to look at it just as a precaution. We have no close-up pictures of the spines of the Agave americana, so we are giving you some views of the closely-related  Agave havardiana (Havard's century plant).

 

From the Image Gallery


Havard's century plant
Agave havardiana

Havard's century plant
Agave havardiana

Havard's century plant
Agave havardiana

More Cacti and Succulents Questions

Protecting agave pups in San Antonio
April 23, 2013 - I would like to share the soon to happen bloom of two century plants on my property; they are sisters planted at the same time. I am sad to know they will die but will do all that I can to protect the...
view the full question and answer

Is Sedum recommended for a greenroof project in Houston
July 23, 2008 - Would you recommend using Sedum for a green roof project in Houston, Texas? Will the humidity effect the sedum? If sedum would be a poor choice, what would you recommend for Houston?
view the full question and answer

Both large and small Century plants putting up stems from Cayucos CA
November 18, 2013 - I have a Century Plant that is sending up a stem. I am excited to see it bloom. I noticed that one of the small pups, about 4 inches tall, is also sending up a stem. I have not found a mention of pups...
view the full question and answer

Information about prickly pear cactus for school project
October 19, 2012 - Hello my name is Case Danzeiser. I go to a middle school called Clint Small Middle School in Austin, Texas. We are doing a species study on a native Texas plants and animals. I choose to study the pri...
view the full question and answer

Non-blooming of an apparent yucca in Ohio
March 09, 2009 - I have what looks like a yucca plant in my flower bed. but in the 3 years we have lived here it has never bloomed. It did get a little bigger and has always been green. If it is a yucca, is there any ...
view the full question and answer

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