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

Wednesday - June 15, 2011

From: DeLand, FL
Region: Southeast
Topic: Diseases and Disorders
Title: Problems with redbud in DeLand FL
Answered by: Barbara Medford

QUESTION:

My native Redbud trees leaves are turning yellow and a sucker branch has died. What could it be?

ANSWER:

The first thing we think of when we hear of yellowing leaves is chlorosis, which is usually caused by some sort of deficiency in the soil. Depending on whether the soil is acid or alkaline can influence what minerals in the soil become inaccessible to the plant and therefore cause the deficiency. We checked to see what the pH of the soil in Florida is, and it is mostly neutral to slightly acidic. We found the the Cercis canadensis (Eastern redbud) is most often recommended to grow in the Eastern United States, but it also grows in the more alkaline soils in Texas. Cercis canadensis var. mexicana (Mexican redbud) and Cercis canadensis var. texensis (Texas redbud) tend to do better in alkaline soils. Read this article about Straight talk about deficiency in plants.

We found an article on Chlorosis in Trees and Shrubs from Washington State University from which we extracted this paragraph that sounds like the symptoms you are reporting:

"Plants with iron chlorosis first turn yellow-green to yellow between the veins, with the veins remaining a darker green. With more severe chorosis the leaves  become pale yellow and develop brown spots between the main veins. Leaf margins may also turn brown with the leaves later drying up and falling off. Tree growth slows to a stop and dieback of branches can occur when iron chlorosis is extremely severe."

Because there are so many different factors that can be causing your problem, including overwatering, nitrogen deficiency and poor drainage or damage around the roots, we can make no conclusion. We suggest you contact the University of Florida Extension Office for DeLand County for some help specific to your area. We we were unsuccessful in reaching any of their websites, perhaps they are working on the sites, but this site has a map and telephone number.

 

More Diseases and Disorders Questions

Rust on Amelancier Foliage in PA
February 03, 2015 - I live in Pennsylvania and have been plagued with a rust on my serviceberry (Amelanchier canadensis) trees over the past few years. I am unable to find very much information on this disease on the we...
view the full question and answer

Beetles in spineless prickly pear in Austin
June 05, 2010 - I have an enormous spineless prickly pear in my front garden. It's about 6 feet tall, and 6 feet wide. It has blossoming yellow flower. However, it also has large colonies of black beetle-ish bugs li...
view the full question and answer

Texas wild olive tree
April 05, 2012 - I live in the Phoenix area. My Texas wild olive (Cordia boissieri) is about 5 years old, about 12 feet tall and has beautiful blossoms all year long. However, this past year (through all seasons...
view the full question and answer

Effect of unusual wet weather on desert willows
July 23, 2007 - I live in North Central Texas and have 3 beautiful Desert willow trees that are usually in full bloom. I've kept them pruned to form a nice full tree shape but now they are losing leaves and looking ...
view the full question and answer

Problems with transplanted Texas Madrones from Junction TX
May 13, 2014 - We planted 3 little Texas madrones last year 9 - 12 inches high. 2 of them seem to have some kind of black blight along the edges of the leaves that I don't think was the result of our late freezes. ...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center