Rent Shop 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 Non-Natives Questions

Plant Care for Plumeria
October 15, 2005 - I have a plumeria that is getting too tall for my small patio. How I should cut it back and can start the cuttings into new plants? Does the original plant need any special care when it is cut back?
view the full question and answer

Failure to thrive of non-native Buddleja davidii
June 30, 2008 - I love butterfly bushes - but have bad luck growing them. I now have several, including Butterfly Nanho Purple; and they constantly wilt. It has been a dry hot Austin summer, but should I water when...
view the full question and answer

Non-native Purple Hyacinth from Sylvania OH
May 21, 2012 - I am wondering if I plant a Purple Hyacinth Bean vine seed under a tree and allow it to grow up the tree trunk, will it kill the tree?
view the full question and answer

Non-native, invasive mimosa trees in Vincennes IN
April 29, 2014 - I have 3 Mimosa trees here in Vincennes, Indiana and so far none of them are leafing out this spring (4-28-14) Do you think that this past winter could have killed then?
view the full question and answer

Identification of non-native Grape Hyacinth
April 13, 2013 - Mr Smarty Plants, can you tell me please, what is the name of the flower in the attached link? I see numerous references to it as blue bells or bluebells, but when I check the USDA Plants database, no...
view the full question and answer

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