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
1 rating

Thursday - April 06, 2006

From: San Antonio, TX
Region: Southwest
Topic: Cacti and Succulents
Title: Century plant dying after bloom
Answered by: Nan Hampton

QUESTION:

Help!! I want to save my Century Plant from dying. I have already lost one and I don't want to lose this one. Can cutting the stalk before it gets too big save this beautiful plant? Please, please answer soon! Thank you!!

ANSWER:

It sounds as if your century plant has just flowered. If so, I am afraid I have some bad news for you. It is one of a group of plants that dies after it blooms. Plants with this reproductive strategy are known as monocarpic, i.e., they flower and produce fruit only once in their lifetime and then die. All annuals and biennials are monocarpic, but there are also many perennial plants that are moncarpic. Some of these may live for 90 years before flowering and dying. The Century Plant happens to be one of these monocarpic plants. You can see a photographic record of this process of flowering and dying.

Here are some other plants that have the same reproductive strategy:
1. Haleakala Silversword (Argyroxiphium sandwicense)
2. Monument Plant (Frasera speciosa)
3. Many of the bamboo species are also monocarpic.

I can't really tell you whether cutting the flower stalk before it actually blooms would save the plant or not. My feeling is that it wouldn't. I am pretty certain that cutting the stalk after it has flowered and fruited is not going to keep it from dying.

 

More Cacti and Succulents Questions

Sap from agave causing reactions from Edgewater FL
April 06, 2012 - Not only was I stuck with the century plant thorns and needle like ends when I was digging up its pups, but I also broke the carrot-like root of a few when I was transplanting and got the white sap on...
view the full question and answer

Source for DNA sequencing of Opuntia species
March 04, 2014 - Hi Mr. Smarty Plants, I am trying to do a Opuntia speciation study, and rather just identifying the species by morphological comparison, I would also like to go a little deeper by comparing the DNA...
view the full question and answer

Transplanting agave in Austin
September 22, 2009 - I have an 8 foot tall agave (americana?) planted in my front yard. It has been there quite happily for over 20 years. How would I go about transplanting this to another location? Thanks!
view the full question and answer

No blooms on Spineless Prickly Pear in Austin
June 07, 2012 - I've had a spineless prickly pear planted in the shade for about 3 years. It has done just fine there, but has never bloomed. I recently moved it to a full sun location(I'm in north Austin) and cove...
view the full question and answer

Can I trim back my 20 ft Yucca plant?
May 11, 2009 - I have a yucca tree which is about 20 ft. tall, has four main trunks. I would like to prune it to approx. 10 ft. but wonder if that will kill it or if new shoots will come out up near the cut.
view the full question and answer

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