Explore Plants

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
    
 

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

Saturday - October 18, 2008

From: Rockford, IL
Region: Midwest
Topic: Pruning, Seasonal Tasks
Title: Trimming native Yucca filamentosa for winter in Illinois
Answered by: Barbara Medford

QUESTION:

I live in northern IL and I have approximately 5 yucca plants, Adams needle, my question is do I need to trim them down for winter for best growth the next year?

ANSWER:

Yucca filamentosa (Adam's needle) doesn't need pruning per se. You should always cut back the woody blooms stalk as soon as blooming is over unless you are planning to harvest seeds. If you are trying to harvest seeds, the chartreuse-green seed pods should remain on the plant until they turn brown or black and begin to split. This article from Ohio State University on Yucca filamentosa  will give you some information on trimming the basal foliage. If some of your yuccas are beginning to outgrow the area in which you want them to grow, you might do some trimming on the blades that are protruding where you don't want them.  Please be very careful, protecting yourself or whoever is doing the trimming. Heavy clothing covering and protecting the arms and legs, leather gloves and even goggles are all necessary. As you bend over to trim the trunk, those sharp points are going to be trying to get you wherever they can. You especially don't want one of those in your eye. To quote from that article:

"Dead basal foliage needs to be carefully removed with a sharp knife in early Spring (wear gloves; the tough foliage can be sharp on its edges, in addition to the knife), and immature fruiting stalks are best pruned away just after flowering has finished in mid-Summer."

Pictures of Yucca filamentosa

 

More Pruning Questions

Burning back Gulf Muhly instead of trimming from San Antonio
December 19, 2011 - A few years ago I noticed that the Center burned back its Gulf Muhly rather than cutting it back. Did that study result in any conclusions or recommendations?
view the full question and answer

Controlling oak suckers in Austin
January 26, 2012 - I live in Austin TX and have one particular native Oak tree in my back yard with a large bed around it. I don't plan on planting anything else in the bed since it is already nicely landscaped along ...
view the full question and answer

Pruning Saucer Magnolia in Eatontown, NJ.
January 12, 2013 - Adult Saucer Magnolia (tulip tree). Branches were getting heavy to where they were ready to break. I pruned them back leaving 1 to 3 inch diameter cuts on many branches. Should I put something on th...
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

Care for cultivar of native Bignonia capreolata
February 05, 2008 - I planted Dragon Lady Cross Vines at the end of the fall last year. When would be the best time to trim them. I live in the Dallas area. They look kind of beat up right now and I thought if I trimmed...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.