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
Not Yet Rated

Friday - November 25, 2005

From: Phoenix, AZ
Region: Southwest
Topic: Cacti and Succulents
Title: Projected longevity of Opuntia fragilis (Fragile Prickly Pear)
Answered by: Nan Hampton and Joe Marcus

QUESTION:

How long does Opuntia fragilis live? Thank you.

ANSWER:

We don't have specific information about the longevity of the Fragile Prickly Pear (Opuntia fragilis); but the Opuntias, in general, are reported to live no longer than 20 years. There is, however, evidence for one species, the Grizzly Bear Prickly Pear (Opuntia erinacea) living more than 75 years. We have Opuntias on site at the Wildflower Center that are more than 10 years old and continue to regenerate themselves by resprouts from dropped pads. Since most, if not all, Opuntias regenerate in this manner, the life of a clonal colony could exceed the proposed 20 year lifespan.

 

More Cacti and Succulents Questions

Ravaged by snails
May 23, 2007 - Our Prickly Pear Cactus is being completely ravaged by snails. Is there something in my yard that could be attracting them? Is there something I can do to keep them off the plant? Also is is safe to...
view the full question and answer

Can I have success planting Adams Needle in Calgary, Alberta? Maybe.
March 23, 2009 - I live in Calgary, Alberta and am wondering if I could have success planting Adams Needle in this climate (lots of chinook winds in the winter with large fluctuations in temperatures).
view the full question and answer

What to do about cold damage to spineless prickly pear?
March 05, 2010 - In Austin, Texas our 'spineless' prickly pear cactus is about 6' wide by 4' tall. In the last severe freeze, the top half flattened out and has remained that way. Should I cut the flattened pads o...
view the full question and answer

Native perennial winter plants for Waco, TX
November 03, 2004 - I live in the Waco area, and would like to know winter plants that I could use that would come back each year, flowering or otherwise.
view the full question and answer

Bloom stalks on agave plants
September 26, 2007 - Hi, We have Agave plants in our garden for years. But in the past few weeks, we noticed a giant asparagus looking thing growing out in the middle of the plants. We don't know what it is, but every d...
view the full question and answer

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