En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Invasive common giant mustard

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
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Wednesday - March 14, 2007

From: Austin, TX
Region: Southwest
Topic: Invasive Plants
Title: Invasive common giant mustard
Answered by: Jimmy Mills

QUESTION:

I have been seeing a lot of a small shrubby plants with yellow flowers all over Austin, mainly along roadsides. Back in my day the first wildflowers of Spring were the paintbrushes and the bluebonnets. Who are these newcomers?

ANSWER:

The plant that you are seeing is Rapistrum rugosum commonly also known as bastard cabbage or, to the more sensitive, as turnip weed or common giant mustard. It is in the mustard family and is considered an invasive weed in Texas. Its seeds germinate early in the growing season in late fall and early winter, and the flowers appear from early spring to summer.

Click here to learn more about this invader, and see texasinvasives.org for information about other invasive plant species.

 

More Invasive Plants Questions

Non-branching mimosa tree
June 26, 2008 - I have a Mimosa Tree, just about 2 years old, grown from seed. The problem with it is that it has not branched out, it looks like one long branch growing out of the ground, about 5 feet if stood strai...
view the full question and answer

Non-native invasive chickweed in Collegeville PA
December 31, 2011 - My problem is chickweed. I have found considerable information on how to eliminate the chickweed. My question is after following a suggested elimination process: How and when do I reseed with grass?...
view the full question and answer

Brown, dry leaves on weeping willow tree
May 01, 2008 - We live in central TX and have just planted a weeping willow tree. Our back yard has a retention pond and ravine that parallels our property and we were told that the weeping willow will do perfectly ...
view the full question and answer

Removal of Invasive Mint
April 23, 2011 - The herb Mint is taking over my flower garden. How can I kill this out? Thank you,
view the full question and answer

Removal of trumpet creeper in Elkview MI
April 09, 2010 - Thank you for your informative response about the trumpet creeper. As pretty as it is- it will have to go! Trees are more important. Thanks again!
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center