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 - September 24, 2012

From: Austin, TX
Region: Southwest
Topic: Non-Natives, Diseases and Disorders, Shrubs
Title: Failing to thrive of non-native rose bushes in Austin
Answered by: Barbara Medford

QUESTION:

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 or powdery mildew. What should I do?

ANSWER:

From a previous Mr. Smarty Plants answer:

"We are assuming you are referring to the Knock-Out rose, which is a recently hybridized floribunda rose. The Knock-Out is a trade name. There are very few members of the rosa genus native to North America; most, including the floribundas, are native to China. The Lady Bird Johnson Wildflower Center is dedicated to the growth, propagation and protection of plants native not only to North America but to the area in which they are being grown. This plant is out of our area of expertise, but the link above will take you to a good article about them."

 

More Non-Natives Questions

Possible damage by invasive, non-native earthworms in compost
January 03, 2007 - I received a worm bin (vermicomposter) for Christmas. The instructions that came with the bin say to use the red wiggler worm (Eisenia foetida) and that it is okay if some of the worms go into your g...
view the full question and answer

When and how to prune lavender (Lavandula sp.)
March 20, 2009 - Dear Mr. Smarty Plants I have a Goodwin Creek Lavender plant that I planted last year. It did very well but my question is about pruining. It seems that there is some growth coming up now that it...
view the full question and answer

Pictures of Bastard Cabbage from Dallas TX
April 07, 2012 - HI! Re your March 12 posting: The USDA Plants website pictures two very different looking plants identified as Rapistrum rugosum (bastardcabbage). Would you please post a photo with leaf and bloom ...
view the full question and answer

Yellow leaves on non-native pittisporum in Wharton TX
March 17, 2009 - Green pittisporum that I planted 2 years ago and 1 year ago are getting a lot of yellow leaves. Variegated pittisporum that I planted at the same 2 times are doing fine.
view the full question and answer

Questions about lilies from Trussville AL
January 10, 2012 - How can I tell what kind of lily I have? Or better yet,what is the difference between Asiatic lily and a daylily? I also noticed someone asked about Cahaba lily. Just want to let you know I grow Caha...
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