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

Transplanting honeysuckle bush in Illinois
April 18, 2009 - Want to transplant 3 honeysuckle shrubs 10 to 12' tall this month, although not the best time. Please advise.
view the full question and answer

Are dusty millers perennial in Dubuque, IA?
April 24, 2009 - I have dusty millers in my front yard. Last fall I did nothing with them as I wasn't sure if they will return or not. Do the dusty millers continue to grow year after year and should I cut them dow...
view the full question and answer

Plants for indoor container gardening from Lax Vegas NV
May 10, 2013 - What is an good flower to grow in a pot? I live in a apt., and like roses,tulips etc. if that helps any.
view the full question and answer

Control of non-native invasive ground ivy in Grand Junction TN
May 08, 2010 - Dear Mr. Smarty Pants, I live in the Southwest portion of TN about 50 miles east of Memphis. We have an invasive plant, called Ground Ivy, Glechoma hederacea L in our yard and pasture now which is ta...
view the full question and answer

Privacy screening from Phoenix AZ
April 14, 2013 - I live in the center of Phoenix, Az. On the eastern side of my house we have some 2 story condos next door. The width of the side yard is about 12'-15' and it gets lots of shade. I also have my powe...
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