Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

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

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

Wednesday - May 02, 2007

From: Ooltewah, TN
Region: Southeast
Topic: General Botany, Cacti and Succulents
Title: 20 years to bloom
Answered by: Damon Waitt

QUESTION:

My girlfriend and i have come up with an interesting question, we were wondering if there is a plant in existance that takes over 20 years to bloom, and how many different kinds (if any) there are? We have bien pondering this for quite some time now and we can't figure out what to search for, any help would be greatly appreciated.

ANSWER:

There are a large number of plants that take over twenty years to bloom. For example, many Agaves typically bloom every 8 to 20 years. The plant produces a single flower stalk 10 feet tall during the spring or summer and then dies. Colonies are maintained by "pups" or offsets that grow from the base of parent plants. Many species of bamboo can take even longer to bloom. Bamboo goes from 20 to over 100 years between flowering. Try searching the web for "Century Plant" or "Bamboo" to learn more about these species.

 

From the Image Gallery


Parry's agave
Agave parryi

Havard's century plant
Agave havardiana

Thorncrest century plant
Agave univittata

More General Botany Questions

Why do sunflowers turn towards the sun?
February 27, 2006 - Why do sunflowers turn towards the sun?
view the full question and answer

Thickness of liquid when growing plants
February 09, 2008 - Q: Does the thickness of liquid matter when growing plants?
view the full question and answer

Student research on fire-resistance plant labels from Garden Ridge TX
November 13, 2013 - Dear Mr. Smarty Pants, I'm a 4th grader at Garden Ridge Elementary in Comal County. I am researching fire resistant plants. Can you please tell me if most plants' tags say whether they are fire r...
view the full question and answer

Classes for a nature lover in Frisco TX
August 16, 2009 - I have a question which I don't think is available in this website. I love plants & flowers,trees etc- just like you, I've only studied till my higher secondary school; now would love to study as we...
view the full question and answer

Fasciation on Texas Mountain Laurel
November 21, 2012 - Do Texas Mountain Laurel normally have a staghorn looking growth hanging on them after blooming in addition to the seed pod clusters or could this be a mutation?
view the full question and answer

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