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

Wednesday - January 13, 2010

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Cold tolerance of Anacacho Orchid Tree (Bauhinia lunarioides)
Answered by: Nan Hampton and Joe Marcus

QUESTION:

I live in Austin, and I'm considering planting an Anacacho Orchid Tree. How cold tolerant is it? Would the tree have been damaged in the recent 18 degree temperatures we experienced?

ANSWER:

According to the University of Texas at El Paso Chihuahuan Desert Plants database, Bauhinia lunarioides (Anacacho orchid tree) is hardy down to 15 degrees F.  The temperature on Jan. 9, 2010 at Bergstrom International Airport in Austin was 9 degrees F. and at Camp Mabry it was 17 degrees.  These were both record lows for the day and, in general, it is very unusual for the temperature to reach so low in Austin.  It remains to be seen if the local Anacacho orchid trees were hurt.  There are two in the general area of Camp Mabry that we've observed—one is about 5 feet tall and it's leaves have all turned brown (the leaves of the Anacacho orchid tree are somewhat persistent, although the tree is deciduous).  The other tree that is probably 7 or 8 feet tall still had some leaves that appeared undamaged although many of its leaves had also turned brown.  The ones at the Wildflower Center had freeze damage to their leaves, but otherwise the trees appear to be fine.

So, the jury is still out.  Our sense of it is that we will probably see some damage to the trees depending on local conditions, but most will survive just fine. Check back with us in April and we can give you an assessment of how these particular trees mentioned above are doing.

 

More Trees Questions

Newly planted nuttall oaks from Houston TX
November 16, 2012 - I recently purchased two Nuttall Oak Trees in Houston Texas (October). They are both 15' or taller. I planted them within 24 hours of being delivered, watered them in, staked them, and within 3-4 d...
view the full question and answer

Permit to transport trees in Ivanhoe TX
December 02, 2010 - Do you have to have a special permit to transport trees on a semi truck and trailer in Texas? They are Texas grown trees, just going to a different location inside the state.
view the full question and answer

Trees & shrubs, low water, no maintenance, disease & pest resistant
May 04, 2013 - We need few Trees and shrubs to meet the following needs: - Low Water or best with a taproot for Ground Water - Clay Soil in Steep Slopes (25-40 degrees) - Low or No Maintenance. (hillside, no trim...
view the full question and answer

Native trees that will thrive in Amarillo, TX
April 04, 2010 - I need help in finding native Texas trees that will do well in Amarillo's low water and extreme temps.
view the full question and answer

Wildflowers that grow in woodlands
June 22, 2011 - Please tell me the names of wildflowers that grow under your oak trees in Texas. I am only familiar with those open meadow plants, not those that live under the deciduous trees. Thank you for your t...
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