En Español

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
Not Yet Rated

Monday - June 29, 2009

From: Canton, MI
Region: Midwest
Topic: Non-Natives
Title: Pruning of non-native weigela and roses
Answered by: Barbara Medford

QUESTION:

I have a Red Prince wiegala (spelling?) and while most of the branches have leaves and red flowers, there are some branches that never produced any leaves or flowers. Should I prune them? If so, can I do it now or should I wait for the fall? I also have this very same issue for Red Razz Knockout Roses if you could please advise... Thank You!

ANSWER:

Due to the large volume of questions, we ask that you please limit your questions to topics related to North American native plants. At the Lady Bird Johnson Wildflower Center, we are focused on the care, protection and propagation of plants native not only to North America but to the area in which the plants are being grown. 

Weigela is native to temperate Asia. Basically, what you are asking is how to prune a woody plant, so we found a BackyardGardener.com website with some good information on the Red Prince Weigela.

Most of the roses in commerce today are heavily hybridized to the point their original parentage would be almost impossible to obtain. Often the hybridized rose is given a trademarked name, which doesn't identify its origin at all. Roses largely originated in China, where they have been grown for thousands of years. We found an About.com website How and When to Prune Roses that should give you the general information you are looking for. 

 

More Non-Natives Questions

Are Native Cultivars As Beneficial to Wildlife?
September 02, 2015 - I am working on adding more native plants to my small acreage. I would like to know if using a selection or cultivar of a native species is as likely to have wildlife benefits as using a randomly prop...
view the full question and answer

Deer resistant plants from New Braunfels TX
August 31, 2012 - I have a 1/2 yard covered by a tree, shady. Bermuda grass previous owner planted has all turned brown this summer. I don't have lots of money to work with but would love to landscape that side of fr...
view the full question and answer

Pruning of non-native oxblood lilies from Austin
March 27, 2014 - My Oxblood Lilies flowered quite late last Fall. Their foliage is still very green. Can I cut it down now or do I have to wait until it goes brown?
view the full question and answer

Slow growing, non-native Viburnum sandanqua in Deland FL
April 05, 2010 - Hi. I live in central FL, and planted sandankwa viburnum as a hedge 3 years ago. I was told they would grow quickly, but they are growing very slowly, although they look healthy with deep green leaves...
view the full question and answer

Replacements for photinia from San Antonio
August 31, 2012 - i just read your response to someone regarding Red Tip shrubs. You just saved me thousands of dollars ! I was getting ready to order over 250 of these to line my 2.5 acre fence line. What shrub would ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center