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

Saturday - April 28, 2012

From: Kerrville, TX
Region: Southwest
Topic: Watering, Trees
Title: Problems with Cedar Elm in Kerrville TX
Answered by: Barbara Medford

QUESTION:

We live in 10 miles outside Kerrville - have a Cedar Elm tree - planted 4 or 5 years ago, 15-20 foot high, is losing leaves in the top 1/4th. Rest of leaves look healthy and green.

ANSWER:

According to this USDA Plant Profile Map, Ulmus crassifolia (Cedar elm) is native near enough to Kerr County that the soils or climate should not be a problem. However, we suspect drought stress. The Texas Forest Service has an article on Effects of Drought Distress. It specifically mentions wilting of the upper leaves on a tree as being an indicator of drought stress. The Missouri Department of Conservation also has an excellent article on Drought Stress in Trees, including recommendations on watering trees. We have been going through very significant climate challenges the last few years, and every indication is that they are not over. A tree is one of the most valuable assets on your property and every effort needs to be made to help them through this situation.

 

From the Image Gallery


Cedar elm
Ulmus crassifolia

Cedar elm
Ulmus crassifolia

Cedar elm
Ulmus crassifolia

More Trees Questions

Landscape buffer in Bluffton SC
January 21, 2010 - I have to install an irrigated landscape buffer along the outside of a 6'high x 42'long privacy fence about 8' from a public sidewalk in Bluffton, SC. The property owners association requires 4' t...
view the full question and answer

Symmetrical Holes in Live Oak leaves.
April 08, 2009 - We have 2 young live oaks - quercus virginianum trees and their brand new leaves show two symmetrical rows of pin-sized holes punctured along the length of them. What could have caused this?
view the full question and answer

Pruning guidance for Carolina buckthorn from Houston
October 23, 2012 - I have a Carolina Buckthorn in my back patio that I planted in fall 2001. The summer of 2003 the roofers dropped something off the back and broke the top 10-12 inches off. I have tried to train the la...
view the full question and answer

Tree (evergreen) to grow in area with high water table
March 27, 2011 - Dear Mr. Smarty Plants, We live in central Austin, Tarrytown specifically, just blocks from the aptly named Spring Lane. (sometimes we hit water in our back yard within 2 feet of the surface.) We los...
view the full question and answer

Removing grass under oak trees in Pflugerville TX
August 30, 2009 - I would like to use the newspaper-and-mulch method to smother grass under the canopy of live oaks, a bur oak, and a lacey oak so that I can plant natives that will thrive there. However, I'm concern...
view the full question and answer

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