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

Tuesday - September 20, 2011

From: Austin, TX
Region: Southwest
Topic: Plant Lists, Trees
Title: Trees suited for rocky, caliche soil of Central Texas
Answered by: Guy Thompson

QUESTION:

I need to replace aging ashes. I have planted 2 Monterey oaks, but I would like to know what else I could plant whose roots will grow well in NW Austin caliche, rocky soil? Thank you.

ANSWER:

There is a wide variety of native trees suitable for your soil.  Let me begin with large trees, mostly oaks.  The most commonly found oaks in your area are Quercus fusiformis (Escarpment live oak) and Quercus buckleyi (Texas red oak).  The former is evergreen and the latter deciduous.  Both grow into large, handsome trees, but they are susceptible to attack by oak wilt.  Oak species that are resistant to oak wilt include Quercus stellata (Post oak), Quercus macrocarpa (Bur oak), and Quercus muehlenbergii (Chinkapin oak). Quercus laceyi (Lacey oak) grows into a medium sized tree in your area.  Ulmus crassifolia (Cedar elm) is also popular in the Austin area and develops yellow-orange leaves in autumn.

Smaller trees worth considering include Cercis canadensis var. texensis (Texas redbud), Sophora secundiflora (Texas mountain laurel), Prunus mexicana (Mexican plum), and Chilopsis linearis (Desert willow).  Except for Desert willow, which needs full sun, the others are generally understory trees that thrive in partial shade but can take full sun.

Check out the characteristics of the recommended trees by clicking on the underlined names.  Note that some grow more slowly than others, if this is a consideration. Attached below are sample images of the trees I mentioned.

 

 

From the Image Gallery


Escarpment live oak
Quercus fusiformis

Texas red oak
Quercus buckleyi

Post oak
Quercus stellata

Bur oak
Quercus macrocarpa

Chinkapin oak
Quercus muehlenbergii

Lacey oak
Quercus laceyi

Texas redbud
Cercis canadensis var. texensis

Texas mountain laurel
Sophora secundiflora

Mexican plum
Prunus mexicana

Desert willow
Chilopsis linearis

More Plant Lists Questions

Late Blooming Wildflowers for Round Rock
August 06, 2014 - I thought this would be a previously answered question but found nothing in the data base. My question is: in Central Texas what can be grown for some color or interest in a wildflower area when the w...
view the full question and answer

Searchable lists of plant sale plants from Austin
March 21, 2012 - Is there a way to obtain a searchable list of the plants available at the Wildflower Plant Sale in April?
view the full question and answer

Opinion of 5 best native garden plants in Oklahoma from Burneyville OK
September 07, 2013 - What would you say are the 3 to 5 BEST native garden plants for south central Oklahoma?
view the full question and answer

New York City Native Perennials for a Long Growing Season
May 31, 2013 - Which native New York City perennials would be best for the longest growing season?
view the full question and answer

Windbreak [Dustbreak] for Shelton, WA
May 31, 2013 - I live on a well traveled, dusty, gravel road in the Pacific North West and would like to plant a barrier to help control the dust.
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