Rent Shop Volunteer Join

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

Sunday - May 27, 2007

From: Austin, TX
Region: Southwest
Topic: Pruning, Cacti and Succulents
Title: Care of Spanish Dagger (Yucca treculeana) after blooming
Answered by: Jimmy Mills

QUESTION:

I live in Austin and have a 5 ft spanish dagger in my backyard. Now that it has bloomed and the flowers have withered in May, should I cut off the center stalk or will it bloom again from the same stalk? Thanks..

ANSWER:

There are several plants known as Spanish Dagger, but the one you have is most likely Yucca treculeana (Don Quixote's lace). Each flowering stalk produces only one set of blooms, so unless you want to collect mature fruits and seeds, go ahead and remove the old flowering stalk.

More botanical information about Spanish Dagger can be had at this link, and to find learn about historical human uses of the plants, click here.

Pictured below is a flowering bud before opening, and after opening.

 

From the Image Gallery


Spanish dagger
Yucca treculeana

Spanish dagger
Yucca treculeana

More Pruning Questions

Eastern redcedar uprooted by snow in Arlington, TX
February 14, 2010 - During the recent snowstorm one of our juniperus virginiana fell over with the rootball looking intact and with a lot of soil all around it.Should we try to save it? It is approximately 20 feet tall ...
view the full question and answer

Live oaks lifting up sidewalks in Palm Coast FL
December 12, 2013 - My live oak trees roots are lifting up my side walks. Can I cut just the roots that are causing the problem without hurting the trees? Thank you.
view the full question and answer

Pruning Bald Cypress in Wylie, TX
January 02, 2010 - I have a 6 year old bald cypress that sustained damage to the upper portion of its trunk a couple of years ago. Since that time it has grown more outward than upward and developed a rounder shape. I...
view the full question and answer

Premature leaf drop on Red Maple in Kentucky
June 25, 2008 - I have a ten foot Red Maple tree that has been set out for 4 years. Its leaves have slowly turned colors until it currently looks like fall. The leaves are not falling off nor is there yet any s...
view the full question and answer

Smarty Plants on mockoranges
May 25, 2005 - I live in Colorado where it is common to have 1 or 2 late frosts. I planted 4 littleleaf mockoranges (Philadelphus Microphyllus) 2 years ago and they are pretty much in full sun most of the day. I h...
view the full question and answer

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