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?


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
Not Yet Rated

Tuesday - August 30, 2005

From: Louisville, KY
Region: Mid-Atlantic
Topic: Non-Natives
Title: Care for non-native Hibiscus syriacus (Rose of Sharon)
Answered by: Nan Hampton


I am moving into a new home and have been told that the two plants in my front yard are called Hearts of Sharon. I need to know how to care for them and when and how to prune them so that they dont grow so tall. Thank you.


I think, perhaps, what you have is Rose of Sharon (Hibiscus syriacus) which is a non-native plant introduced from China and India. It is a hearty, cold- and heat-tolerant plant widely used throughout the United States as an ornamental. You can find care advice by doing an online search on "Hibsicus care". For example, you can read "Hibiscus Care Tips & Growing Instructions" from Strictly Hibiscus.com. You can also visit the American Hibiscus Society web page.

More Non-Natives Questions

What about Asian Jasmine and scrub oaks?
September 01, 2010 - Dear Mr. Smarty Plants, I have several clusters of native scrub oaks in my yard. I planted Asian jasmine under them many years ago. The trees look fine, but an arborist has told me that the Asian ...
view the full question and answer

Plants for church gardens in Ft. Worth TX
November 07, 2013 - Second attempt. Our church has many gardens in Fort Worth, TX. There are gardens for blue,red,yellow,white,purple,orange,pink,mixed,community garden,roses, and more. I am interested in the la...
view the full question and answer

Pride of Barbados seed for Ft. Worth TX
February 07, 2013 - When can you plant the Pride of Barbados plant seeds and how to go about it in Fort Worth Texas?
view the full question and answer

Non-native, invasive Rapistrum rugosum
April 02, 2008 - What is the name of the alien, spindly, yellow mustard that we see blooming around Austin now ? Is it Hedge Mustard (Sisymbrium officinale) ?
view the full question and answer

Dying branches on non-native buddleias in Horseshoe Bend TX
September 19, 2010 - Our Black Knight buddleias are developing branches that die. The leaves just turn brown and the whole branch dies then another and finally the whole plant dies. Do you know what could be causing this...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2015 Lady Bird Johnson Wildflower Center