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
Not Yet Rated

Thursday - November 10, 2005

From: Belton, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Hibiscus wilt in Texas Star hibiscus
Answered by: Joe Marcus

QUESTION:

I have a Texas star hibiscus on my deck. It flourished all summer, but not quite a month ago, the leaves turned yellow and fell off. Will it come back? What happened???

ANSWER:

Assuming your hibiscus was receiving enough water, the problem sounds suspiciously like a wilt disease caused by a soil-borne fungal pathogen. The symptoms that you describe are typical of hibiscus wilt disease. However, to be sure you should pull a dead plant out of the ground, shake off as much soil as possible away from your landscape, and take the plant -- roots and all -- to your county agriculture extension office for positive identification of the causal agent.

 

If the problem is hibiscus wilt, the plants are probably lost. Further, you would not want to replace them with more hibiscus in the same location because the fungal pathogens can persist for quite a long time in the soil and would likely infect and kill your replacement plants.

 

Here is a link to a very good article on Hibiscus Wilt.

 

Although Texas Star hibiscus, Hibiscus coccineus is thought by many to be a Texas native, it is not. It is native only from Florida to Louisiana. It is also known by the common names Scarlet Hibiscus, Swamp Hibiscus and Scarlet Rose Mallow.

 

More Diseases and Disorders Questions

Growth in oak tree in San Antonio
April 05, 2011 - We have a very large gorgeous oak tree in our backyard here in San Antonio, Texas. I noticed a thickness high up in the tree. Thinking it was a nest of some sort, I used binoculars and saw a parasiti...
view the full question and answer

Pustules on geranium
March 28, 2005 - I have a geranium that has developed oblong red/brown pustules/raised bumps on the undersides of the lower leaves. The foliage around the bumps is stil green but everything else has yellowed
view the full question and answer

Bark splitting in old tulip tree in Red Creek, NY.
May 18, 2013 - Hello, We have a tulip tree that has some bark splitting I guess I would call it. The tree is older and very tall. On the north side of it starting at the bottom of the trunk to about 8-9 feet up i...
view the full question and answer

Why is my weeping willow looking so bad?
June 15, 2009 - My weeping willow suddenly up and looked like it died Yellow leaves dried up and dropping off It is planted in what is called "Wet lands" Clay soil water wet Just looks like it is dying
view the full question and answer

Spots on non-native naval orange trees from Stockton CA
October 20, 2012 - I have two mature Navel Orange trees. One tree has developed spotty chlorophyl depleted areas that were not on the oranges when they were smaller. In addition, the oranges on both trees are smaller ,...
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