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

Friday - August 01, 2008

From: Sandwich, MA
Region: Northeast
Topic: Non-Natives, Pruning, Shrubs
Title: Pruning and deadheading rosa rugosa while blooming
Answered by: Barbara Medford

QUESTION:

Can you prune the dead flowers and branches of rosa rogosa while it is still blooming?

ANSWER:

Just about any member of the Rosaceae family will profit from deadheading and judicious pruning. They will put on fresh growth and it will also promote further blooming. It's not a job we personally would want to take on. Although we live in the land of Prickly Pear cactus and Agave with its formidable armor, we wouldn't voluntarily try pruning a rosa rugosa. The stems are incredibly spiny, densely covered in gray, needle-like thorns. However, in Massachusetts, with your early hard winters, we would not suggest pruning any more after August 1, although deadheading can continue. By pruning, you promote new growth and it might not have time to harden off before Winter. Rosa rugosa is a native of northern China, Korea and Japan, and therefore would not appear in our Native Plant Database. This USDA Plants Profile for Rosa rugosa indicates that it is widely grown in Massachusetts.

We found this forum iVillage Garden Web on Pruning Rosa Rugosa Roses that we thought you might find amusing. Apparently, you're either for 'em or agin 'em, with a lot of strong opinions, but you also could pick up some useful information from other gardeners with experience with the plants. For instance, several gardeners offer tips on picking up those stems without impaling yourself.


 

More Non-Natives Questions

Information on non-native Knock Out Rose
July 30, 2007 - I am trying to find out some information about a Knock Out Rose. I dont know the scientific name for it. I have been to different web sites to find pictures, size etc. and can find nothing. Any help ...
view the full question and answer

Failing to thrive of non-native rose bushes in Austin
September 24, 2012 - I live in NW Austin and I have lost one knockout rose bush this summer and it looks like another one is failing. The leaves on a cane turn yellow then brown. I do not see whiteflies or black spots o...
view the full question and answer

Problems with beheaded non-native Gerbera daisies in Cooperstown, NY
May 31, 2009 - I planted my gerberas in my perennial bed - as usual. Something is beheading them and leaving the blooms along side the plant. Some of the bloom is eaten but most of it is right there. I have t...
view the full question and answer

Non-native smoketree for California City, CA
June 28, 2010 - I was wondering if you could tell me if it would be a good or bad idea to plant a Smoke Tree (most likely European) in the vicinity of a septic tank. We are looking for something which will provide a...
view the full question and answer

Care of non-native potato tree (Solanum macranthum or Lycianthes rantonnetii)
June 20, 2009 - I live in Phoenix. I bought what was called a potato tree. Purple flowers with blooms quite often. It seemed a little puny and twiggy so I fed it Miracle Grow. It is now gorgeous with lovely leave...
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.