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.
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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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Wednesday - April 02, 2008
From: Round Rock, TX
Region: Southwest
Topic: Non-Natives
Title: Non-native, invasive Rapistrum rugosum
Answered by: Barbara Medford
QUESTION:
What is the name of the alien, spindly, yellow mustard that we see blooming around Austin now ? Is it Hedge Mustard (Sisymbrium officinale) ?ANSWER:
We believe the one you are referring to, which is indeed in bloom all over Austin right now, is Rapistrum rugosum, Bastard-Cabbage. It is native to Central Europe, northern Africa and western Asia. The website we have linked you to is the Plant Conservation Alliance Least Wanted List. You can compare it with this picture and descriptive article about Sisymbrium officinale, Hedge mustard.
More Non-Natives Questions
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Return to original color of non-native crape myrtles in Henderson, TX
July 17, 2009 - Mr. Smarty Plants,
I bought 3 Dynamite Crape Myrtles that were about 3 -4 feet tall (at Lowe's). In the late Spring, I planted 2 of them about 100 feet apart, in full sun, and left the other one in...
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Did Mexican fire bush (Hamelia patens) survive winter cold?
May 05, 2010 - I have a Mexican fire bush that I planted last spring and it bloomed beautifully last summer. It browned and we cut it back to the ground. Right now it's showing no signs of life and I'm afraid it m...
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Non-native mint invading flower beds in Kendallville IN
April 26, 2011 - A few years back we were given two sprouts of something referred to as peppermint tea. We planted in our flower bed and now it has taken over. It seems to start slow in the spring but doesn't take lo...
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A method for killing nandina and ligustrum with herbicide
October 19, 2012 - Is there an effective herbicide that can be painted on the stumps of Nandina and Wax-leaf ligustrum to keep them from growing back?
Thanks so much!
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