Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Monday - July 03, 2006

From: Long Island, NY
Region: Northeast
Topic: Non-Natives
Title: Yellowing leaves on non-native Hibiscus rosa-sinensis
Answered by: Nan Hampton

QUESTION:

I purchased a chinese hibiscus hiros small tree and after 1 month the leaves keep turning yellow. What's wrong? It's in a large pot and never outside below 60 degrees. Thanks.

ANSWER:

I am assume you purchased Hibiscus rosa-sinensis, Chinese hibiscus, a native of southern Asia. Since our focus and expertise at the Lady Bird Johnson Wildflower Center is on plants native to North America, the Chinese hibiscus is not really in our purview; however, I can guide you to some resources that might help you with your problem. According to the University of Minnesota Extension Service yellow leaves can be attributed to: "...Abrupt changes in soil moisture, air temperature or drafts. Avoid excessive watering especially with older varieties. Some yellowing is normal in spring or fall when growing conditions are in transition. Yellowing may signal need for fertilizer." It is also possible that you have an infestation of spider mites. You can check out other Hibiscus Disorders & Environmental Influences.
 

More Non-Natives Questions

Smarty Plants on Gloxinias
August 20, 2004 - How do I care for my newly acquired Gloxinias?
view the full question and answer

Non-flowering mimosas in Texas
July 08, 2008 - I have two mimosa trees, about 3 years old. Both were grown from volunteer seedlings. Neither have flowers nor have they produced seed pods. Are they too young or do they need a source of pollenation...
view the full question and answer

Control of Paulownia tomentosa from Westminster MD
October 28, 2011 - I have heard that there is a type of herbicide that is to be applied to slashes made in the outer layer of invasive trees such as Paulownia. This type of application is reputed to prevent the little ...
view the full question and answer

Illegal to remove an orange blossom from ground in Florida from Atlantis FL
March 28, 2012 - Is there any law that prevents someone from removing an orange blossom from the ground in Florida?
view the full question and answer

Why is Common Horehound missing from NPIN?
March 27, 2014 - Hi there, I am not able to find Marrubium vulgare, i.e. Common or White Horehound, in the Native Plant Database. It grows abundantly on our ranch in Central Texas, and I am attempting to grow i...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.