Contact Us Host an Event Volunteer Join

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

Sunday - May 19, 2013

From: Crystal City, MO
Region: Midwest
Topic: Non-Natives, Shrubs
Title: Growing non-native Knockout roses and golden euonymus together from Crystal City MO
Answered by: Barbara Medford

QUESTION:

Can you plant knock out roses and golden euonymus together?

ANSWER:

Well, not on our watch. The Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants, is committed to the growth, propagation and protection of plants native not only to North America but to the areas in which those plants evolved; in your case, Jefferson County, in east central Missouri.

Euonymus japonicus is native to Japan, Korea and China. We suggest you read this article from Southern Living on Five Awful Plants for the Front of Your House.

The genus Rosa is largely native to China. It is severely hybridized. You might be interested in this article from The Daily South, Is the Knockout Rose Down for the Count?

Whether these two plants could be planted together would depend on the soils each requires, sunlight, water, and climate. Since we would have neither in our Native Plant Database, we cannot help you.

 

More Shrubs Questions

Shrubs to stabilize steep slope in California
February 03, 2010 - Suggest shrubs to stabilize steep bank that are drought resistant and resistant to too much rain. Cape honeysuckle? oleander? bottle brush? What?
view the full question and answer

Problems with native palms in Austin
April 10, 2011 - We had a large variety of California fan palms and blue sabal palms in our yard that were damaged during the last freeze. We found that several of them now have "spear pull," which means we could p...
view the full question and answer

Eugenia Substitutes for Southern California
May 14, 2011 - Is there a eugenia bush (preferable one that can grow tall) without berries. We like this plant but the berries create a problem. We live in Los Angeles, CA. Thank you.
view the full question and answer

Savannah Holly True to Seed?
July 03, 2016 - I read your information on Savannah holly. Does this mean that none of the berries will produce a Savannah holly (Ilex x attenuata) but will either be Ilex cassine or Ilex opaca seeds? Thanks so much...
view the full question and answer

Small shrubs for roof garden in Washington DC
February 01, 2009 - I am looking for a hardy evergreen shrub for a roof garden in DC. Needs to be 3-4 feet tall, evergreen, dense, survive the extreme wind, cold and heat.
view the full question and answer

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