En EspaŅol

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
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
1 rating

Saturday - April 03, 2010

From: Austin, TX
Region: Southwest
Topic: Non-Natives
Title: Problems with non-native hollyhock in Austin
Answered by: Barbara Medford

QUESTION:

Our hollyhocks develop small yellow spots on the leaves; these eventually spread into little swellings on the underside; I think of them as lesions. They spread and the leaf turns brown and shrivels up. Can you give me any information that would assist?

ANSWER:

There is one hollyhock native to North America, Iliamna rivularis (streambank wild hollyhock), but it does not grow in Texas. It seems more likely that what you have is Alcea rosea, Hollyhock,  thought to have originated in Asia, but now so hybridized that it is only found in cultivation, not as a wildflower. Since the Lady Bird Johnson Wildflower Center is dedicated to the use, protection and propagation of plants native not only to North America but to the area in which the plants are being grown, the cultivated form of hollyhock would be out of our area of expertise. 

Here is an article on Alcea rosea from Michigan State University Extension, which mentions the plant is subject to several diseases. 

 

More Non-Natives Questions

Protecting plants from birds near bird feeder
April 24, 2009 - I am happy to have several cardinal pairs living in my yard, but I need to discourage them from eating & destroying my purple heart planted under the huge cedar that holds my bird feeders. The cardina...
view the full question and answer

Invasive thistles in wildflower field from Dripping Springs TX
February 17, 2014 - How to get rid of "native" thistles.. I have a large natural field that used to grow a variety of wildflowers, but in 2011 and 2012 it was taken over by thistles. I'm sure they are "native" Texas...
view the full question and answer

Is India Hawthorne a deer-resistant plant?
July 03, 2011 - Is India Hawthorne a deer resistant plant in Beaufort County South Carolina?
view the full question and answer

Failure to thrive of closet plant
August 13, 2008 - I have a closet plant that is old and was doing fine and then started having droopy leaves. It needed to be in a larger pot so I transplanted into a larger pot with new potting soil. It continues to...
view the full question and answer

Problems with Habiturf in Austin
May 10, 2014 - I have been trying to establish a Habiturf lawn in my back yard. It is approximately a 1,000 square foot area and this last seeding was the third over about one and a half years. I just recently over ...
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