Explore Plants

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
    
 

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

What to do with ailing live oak trees
May 04, 2010 - We live in far north San Antonio, TX on a 2 acre lot with many trees.. about 25% oak and 75% cedar. About 15% of our live oak trees have not sprouted leaves yet this spring, or have only sprouted leav...
view the full question and answer

Plant ID in Flower Mound TX
June 23, 2009 - I have a large native tree in the back yard, leaves resembles a live oak, but evergreen,& small white flowers in the spring, very tall vase shaped tree. It had no acorns or berries.
view the full question and answer

Problems with red oak trees in North Central Texas
July 13, 2013 - What is the disease effecting Red Oak trees in North Central Texas; causing them to lose leafs in Spring/Summer and turning the remaining leaves light yellow/lime green in color. Thank you.
view the full question and answer

Problems with Acer rubrum in Sacramento
September 06, 2009 - We live in Sacramento California and have two seven year old Magenta Maple trees in our front yard that are planted about 65 feet from each other. This is the second year in a row that the tree on th...
view the full question and answer

Sap dripping from redbud in Bertram, TX
March 03, 2014 - Our multi-trunked Texas redbud has sap dripping down 3 of the trunks. It seems to originate from a very small crack in each trunk. The tree is just starting to show pink this week, and is about to blo...
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.