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
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

Pruning and deadheading rosa rugosa while blooming
August 01, 2008 - Can you prune the dead flowers and branches of rosa rogosa while it is still blooming?
view the full question and answer

Pruning Texas Mountain Laurel
September 04, 2014 - I've had a Texas mountain laurel for 4 years that's being trained into a tree. I think it was a 3-year old tree when I purchased it. Unfortunately, it has suffered from overwatering, and the two mai...
view the full question and answer

Climbing options for a Coral honeysuckle in Austin Texas
April 16, 2013 - Regarding Coral honeysuckle, what is the best support to encourage continued spread, chicken-wire/fencing? Currently the plants and vines are on fencing and beginning to fold over. I'd like to add...
view the full question and answer

Control of out-of-bounds Virginia creeper
September 16, 2007 - Our Virginia creeper (Woodbine) has outgrown its planned location this past summer. What is the best way to prune ivy stems for next years controlled growth?
view the full question and answer

Rose care for Austin
August 18, 2013 - I am a transplant from the Pacific NW and need to relearn rose care for Austin. When is the best time to cut back the roses, or do I even bother? I also need to find out how far back I can trimming a...
view the full question and answer

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