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 - February 03, 2011

From: West Lake Hills, TX
Region: Southwest
Topic: Trees
Title: Live oaks dying in Austin, TX?
Answered by: Joe Marcus

QUESTION:

I had my live oak trees trimmed in October(it had been over 5 years) by a reputable Austin company. The tree canopies were not very thick to begin with, but throughout the winter, some trees have lost up to 30% of their leaves and the largest one has dropped 90% of its leaves and is now nearly barren. Is this one dying? Are they in temporary shock? Should I be doing anything for them or just wait 'til Spring? Hoping for help and praying for good news. Thank you

ANSWER:

You were right to employ a reputable tree company to care for your trees.  Because trees add so much value - monetary and aesthetic - to our homes, we always advise folks to seek the help of certified arborists to care for their trees.

The trimming your arborist did to the tops of your trees in the fall did not cause your live oaks to go into shock.  If any major changes occured in the trees' root zones in the past year that could have caused shock.

Whenever we hear about sudden large-scale leafdrop on live oaks in central Texas, our first concern is Oak Wilt Disease.  The leaves of Oak Wilt infected live oaks will show classic signs of veinal necrosis.  If no leaves have these yellowed or orange veins, you can probably rule out Oak Wilt.

Live oaks, usually considered evergreen, are actually deciduous trees that just happen to drop the past year's leaves at the same time their new leaves are emerging.  This usually happens around the beginning of March in your area.  However, some trees can drop leaves earlier for a variety of reasons.  To be sure, we again recommend having a certified arborist visit with you and your trees to evaluate them and their health.

 

More Trees Questions

Mountain Laurel growing in East Texas
April 24, 2008 - I found a plant that looks like a Texas Mountain Laurel growing wild on a fenceline in east texas, near Canton. It is a small shrub/tree and has flowers like wisteria. It has "hairy" stems, they ar...
view the full question and answer

Landscaping with native plants in Austin
October 06, 2005 - I'm expanding a flower bed in front of my house and would like to keep it all natives. 1) How do I find out what type of soil I should add? (I live near Hyde Park, Austin and haven't had a soil te...
view the full question and answer

Sticky stuff dripping from non-native crape myrtle in Austin
August 01, 2012 - There is sticky sap-like stuff dropping from the very large crepe myrtle in my yard. The tree has quit blooming. This didn't happen last year when it was so dry; it started after we had all the rain ...
view the full question and answer

Trees for cutout in driveway in Houston
November 12, 2010 - I live in central Houston. I have a new driveway with a cutout of 4' x 8'. I would like to plant a shade tree that will not break up the concrete. What do you recommend?
view the full question and answer

Controlling seeding of non- native, invasive Paulownia from Fayetteville TN
August 17, 2012 - My husband planted a Paulownia tree against my advice about eight years ago. This summer it has huge seed pods. How do I keep the seeds from invading the wooded area of our property?
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