Native Plants
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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
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.
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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
Gift plant for a new arrival in Texas.
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Plant identification
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Need some help with my Mexican Bush Sage in Rockport, TX.
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Foliage of non-native Japanese maple tree
April 01, 2008 - My Japanese maple tree (1 year old) is bright red in early spring. Then it turns green. Is there a way to keep this tree red?
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Problems with non-native Bradford pear in Austin
May 16, 2009 - Hi,
I planted a Bradford Pear tree about five years ago, and half of it is not filling out with leaves very well. Then about a month I noticed leaves here or there curling brown and dying, and causin...
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