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

Saturday - August 22, 2009

From: Eureka, TX
Region: Southwest
Topic: Transplants, Trees
Title: Leaves falling off live oak tree in Eureka TX
Answered by: Barbara Medford

QUESTION:

I have the same question; it is in Navarro County in August. The leaves are falling off my live oak tree, they are brownish yellow, but it is not oak wilt. What might it be? This year I put mulch around the tree with plants, could I be drowning the tree?

ANSWER:

We are assuming you were referring to an earlier question from Gregg Co. Texas, with the same problem. Aside from the fact that this has been a very hard year, even in East Texas, for heat and drought, there are several other things that can cause yellowing. If you just recently planted the oak, it could be suffering from transplant shock, especially if it was planted in the heat, rather than in mid-winter, when the tree would be semi-dormant. Yellowish leaves could indicate chlorosis, or lack of iron being taken up by the tree from the soil. This is often caused  by poor drainage and/or dense clay soil, which causes water to stand on the roots. Again, this could  be a problem caused by planting, perhaps without any organic material added to hole, or damage to the tiny rootlets that take up water and trace elements, including iron, from the soil. From a distance, we have no way of diagnosing your tree's problems, nor of recommending a solution. You say you know you don't have oak wilt, but we hope you did look at the link to identify it in that previous answer.

Your best bet for finding out what is wrong with your oak and how to treat is to contact the Navarro County AgriLife Extension Service agent, the Texas Forest Service or consult a professional arborist.

 

 

More Trees Questions

Replacement for non-native Italian Cypress in Austin
July 10, 2011 - I would appreciate your assistance with some native plant options to replace Italian Cypress trees in the Arboretum area of Austin, TX. I have 12 of the trees on the north side of the house to obstru...
view the full question and answer

Protecting a new patio from oak roots
September 01, 2008 - Hello, I have just formed up for a new patio. I have a Live Oak tree about 2' away from the patio. It has a trunk diameter of about 10", I believe 20-25 years old. Problem: I have 2 large roots in ...
view the full question and answer

How to prune my Linden tree?
June 17, 2009 - We have a 15 yr old Linden in the backyard. North side of home. It can use some pruning at the lower branches. Which branches do we prune and when? Also we have some river birches back there. Oth...
view the full question and answer

Problems with Ashe juniper from Lakeway TX
May 25, 2013 - Dear Sir/Madam, I have been living for the last three years in Lakeway, Texas approximately 20 miles west of Austin. In my back garden there are several ashe junipers about 15-20ft tall. However...
view the full question and answer

Brown circular ring in trimmed branches of redbud tree
January 22, 2009 - I have a redbud tree that was recently trimed back. When looking at the cross section of the branches, I noticed a brown circular ring. Is this a problem and if so what can I do to correct it?
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