En Español

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 - February 25, 2005

From: London, Other
Region: Select Region
Topic: Cacti and Succulents
Title: How do cacti stay in ground
Answered by: Nan Hampton

QUESTION:

How do cacti stay in ground? I know that flowers stay in the ground by their roots but what about cacti?

ANSWER:

Cactus have roots, too. Some have shallow spreading root systems and some have large tap roots or a cluster of tubers. An old night-blooming cereus (Peniocereus greggii) can have a very large tap root weighing as much as 100 pounds. to read more about cactus, you can visit the Cactus Museum web page. The cacti use their shallow roots to absorb water when it rains, but many of these roots may die when it becomes dry. Read about How Cactus Survive in the Desert.
 

More Cacti and Succulents Questions

Reasons to leave a century plant in place in Florida
November 01, 2010 - Can you please list ALL the reasons to leave a century plant (as opposed to cutting it way back or removing it) in the wilds of the sand dunes on the coast of Florida, other than its prominent beauty?
view the full question and answer

Can I save my century plant by cutting the flowering stalk in Austin, TX? Probably not.
April 28, 2010 - Our century plant is starting to sprout it's flower (four feet). If we cut it down can we save the plant? Thank you.
view the full question and answer

Can Joshua Tree yucca be grown in Denham Springs LA
December 31, 2011 - If planted in a patch of raised and well-drained soil and covered during heavy rains, would it be possible to grow a Joshua Tree yucca in eastern Louisiana?
view the full question and answer

Should I remove the flowering stalk from my Dasylirion leioiphyllum?
March 23, 2009 - We transplanted a plant that is new to us but going through your photos on your website, it appears that we have a Dasylirion Leiophy. My question is this.. Are we supposed to cut the 6' stem that f...
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.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center