En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Pruning buttonbush from Pottsville PA

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

Tuesday - December 10, 2013

From: Pottsville, PA
Region: Mid-Atlantic
Topic: Pruning, Shrubs
Title: Pruning buttonbush from Pottsville PA
Answered by: Barbara Medford

QUESTION:

In a formally planted park, a small area has become swampy. I have choosen to plant it with wet tolerant native plants. I would appreciate any suggestions on pruning the buttonbush [Cephalanthus occidentalis] to fit into the setting and not become ragged.

ANSWER:

Cephalanthus occidentalis (Common buttonbush) is native to Schuylkill Co., PA as shown in this USDA Plant Profile Map. We always check on this first to make sure gardeners are not spending a lot of effort on a plant that cannot survive the environment where they are being grown. 

If you follow the plant link above to our webpage on this plant you will find these growing conditions:

"Growing Conditions

Water Use: High
Light Requirement: Part Shade , Shade
Soil Moisture: Moist , Wet
Soil pH: Circumneutral (pH 6.8-7.2)
CaCO3 Tolerance: Medium
Cold Tolerant: yes
Soil Description: Limestone-based, Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay
Conditions Comments: Common buttonbush is a spreading, multi-branched shrub or sometimes small tree with many branches (often crooked and leaning), irregular crown, balls of white flowers resembling pincushions, and buttonlike balls of fruit. Buttonbush is a handsome ornamental suited to wet soils and is also a honey plant. Ducks and other water birds and shorebirds consume the seeds."

In particular, notice the line: "Buttonbush is a handsome ornamental suited to wet soils and is also a honey plant." You have chosen this plant very well for the conditions you describe. Also on that page is this information: "Trunks are often twisted. Spreading, much-branched shrub or sometimes small tree with many branches (often crooked and leaning), irregular crown." You can see from the pictures below from our Image Gallery that the plant is capable of growing to a very full shape.

From the University of Connecticut Horticulture Department, mention is made of periodic "rejuvenation pruning" to avoid the plant becoming misshapen and out of control. From the Purdue University Department of Horticulture, please read this article about rejuvenation pruning

The conclusions from both of these academic articles is that pruning is better done on a regular annual basis. Since the plant is deciduous and you should prune woody plants (trees and shrubs) in cool weather, we would advise mentally noting or even loosely tied flags on points at which you plan to prune Although this is by nature a loosely growing shrub, we believe that regular annual maintenance will be better to keep it neat and appropriately sized than the cutting to the ground of rejuvenation pruning.

 

From the Image Gallery


Common buttonbush
Cephalanthus occidentalis

Common buttonbush
Cephalanthus occidentalis

Common buttonbush
Cephalanthus occidentalis

More Shrubs Questions

Native shrubs for privacy hedge in Lockhart, TX
December 21, 2008 - I will be retiring from the US Army to Lockhart, Texas in March. We have a small house with a 6' security fence. I have always been an advocate of Hedges for security, sound dampening and wildlife ...
view the full question and answer

Ilex vomitoria Sufering from Drought?
January 19, 2012 - My Ilex vomitoria has always thrived. It is about ten years old. This fall, a portion of the leaves on the ends of the branches have turned yellow on the edges with green veining in the center. Othe...
view the full question and answer

Evergreen shrubs for privacy in Merced County California
September 11, 2009 - Mr. Smarty, A main road will be moving closer to our home in the next two years. A chain link fence will be put in but we would like to start planting now for privacy. We would appreciate any ide...
view the full question and answer

Deer resistant plants for Trinity, TX
March 23, 2013 - I need a list of deer resistant flowers, herbs and plants that would could be planted in Trinity, Texas.
view the full question and answer

Evergreen pet-safe shrubs for house and screening in McKinney TX
April 15, 2010 - Looking for shrub, preferably evergreen, to plant near the house that can handle wet ground and is pet (dog, cat, horse) safe. The area became boggy after we had an underground water leak that is now ...
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.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center