En EspaŅol

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
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Friday - September 07, 2007

From: San Marcos, TX
Region: Southwest
Topic: Pruning, Cacti and Succulents
Title: Trimmng and fertilizing yucca
Answered by: Barbara Medford

QUESTION:

Should I cut the stalks of the Yucca that have already bloomed or wait until they dry? How often should I fertilize?

ANSWER:

Preparing to answer your question, we queried the Lady Bird Johnson Wildflower Center Plant Database on "yucca" and got 25 possibilities. So, we don't know which yucca you are growing, but the answers to your questions are pretty generic, and we picked a couple for demonstration. Hesperaloe parviflora (redflower false yucca) and Yucca faxoniana (Eve's needle). Both are native to Texas and are frequently seen in landscaping in your area. Hesperaloe parviflora is not even a true yucca, but a member of the Lily Family. Yucca faxoniana is often seen growing wild on rocky hillsides and is a member of the Century Plant Family. We always think it is a good idea to clip off stalks of plants after they have flowered. This helps to cut down on litter and possible insect or disease damage. The problem there, of course, is getting close enough to them to clip those stalks; we hope you have some leather gloves and long-handled lopping shears. In regard to your second question about fertilizing yucca, one of the beauties of native plants is they seldom or never need fertilizing. They have been growing and flourishing in sometimes inhospitable environments for many thousands of years without the intervention of gardeners armed with hoses and sprays. If the plant is in a flower bed or border and you are throwing a little timed-release fertilizer in there, it certainly won't hurt the yuccas. Just remember, the faster those yuccas grow, the longer and more lethal those dagger-like leaves are going to be.

 

From the Image Gallery


Red yucca
Hesperaloe parviflora

Faxon yucca
Yucca faxoniana

More Cacti and Succulents Questions

Damage to Agave in New Braunfels, TX
August 21, 2008 - In a flower box, I have an Agave on which the leaves have been damaged. It looks as if a deer rubbed his antlers on it. Is there any animal in south central Texas that would try to eat an agave?
view the full question and answer

Insects on yucca from Ft. Worth TX
April 05, 2012 - I have a plant labeled Yucca Soft Leaf recurvifolia that I planted about 5 years ago,& was beautiful until last summer when it became infested with thousands of fast, tiny, dark insects. I sprayed wit...
view the full question and answer

Preserving century plant bloom stalk from Sedona AZ
December 16, 2012 - I have the flower stalk from a century plant which I am using as a Christmas tree. Can you advise me as to what I should do to preserve it for future use? Should it be kept indoors or outdoors. Pro...
view the full question and answer

Life span of the century plant (Agave spp.)
June 17, 2009 - I have a beautiful century plant that is blooming. what will happen once the bloom is done? What is the life span of the plant?
view the full question and answer

Native plants for a New York, NY apartment?
August 14, 2009 - Dear Mr. Smarty Plants, What are some native Mid-Atlantic/New England plants that can be grown well indoors? I live in an apartment in New York City and have recently realised that the plants I'v...
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 | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center