En Español

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
1 rating

Saturday - October 11, 2008

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Cold hardiness of native Wild Olive in Austin
Answered by: Barbara Medford

QUESTION:

I am considering purchasing a Mexican/Texas Olive (Cordia boissieri) at the upcoming Wildflower Center plant sale to put in my yard in east Austin. I know this tree naturally occurring range extends to south Texas and I am concerned that this frost-intolerant tree might not make it or die back to the roots in the winter. Do you have any advice on the survivability and fitness of the Mexican Olive being planted in the Austin area? Thanks!

ANSWER:

We really can't tell you a whole lot more than our webpage on Cordia boissieri (anacahuita) does, that it is hardy to Zone 8, that it can survive in San Antonio, but still get nipped back to the ground by a hard freeze, and may drop all its leaves in a milder freeze. The fruit attracts birds and other animals, but is not considered a suitable food for humans. From a couple of other resources, including USDA Forest Service Wild Olive, we learned that it has better chances in a sheltered spot, in full sun and perhaps where reflected heat, as from a brick or stone wall, might be available. It is said to have a frost tolerance to 18 deg F, but still could lose all its leaves at that temperature. We also learned that shelter is important because it is not very wind-tolerant. It would appear that if you can provide the right, protected environment you could very well enjoy this tree/shrub for a long time. 

We also should caution you that the species on the Species Plant List for the Fall 2008 Plant Sale, October 17 (Members only), 18 and 19 are those that have been available in the past, and are not guaranteed to be at this sale. It is based on availability, and some are few in number, and may be sold out quickly. Many are provided by vendors, and we may not know until they are delivered exactly what we will have on sale.


Cordia boissieri

Cordia boissieri

 

 

More Trees Questions

Apples, pears and geraniums in Kipling, Saskatchewan
March 30, 2013 - My geranium's leaves became yellow - Why? Where can I buy a good nice apple tree? Will apples and pears grow in south Saskatchewan?
view the full question and answer

Variegated leaves on Ungnadia speciosa (Mexican buckeye)
April 11, 2007 - I grew some mexican buckeyes from seed last year and one of them has variegated leaves. I haven't seen this before- have I just not looked at enough mexican buckeyes up close or is this an uncommon f...
view the full question and answer

Leaf problems on Arizona ash in New Braunfels, TX
August 07, 2010 - I have an Arizona Ash tree that is 10 years old. The leaves have brown spots all over and then eventually the leaves curl up and fall off the tree. Is this a fungus or a bacterial infestation? What...
view the full question and answer

Specifications for a property in Corning CA
March 29, 2012 - Drought resistant, deer resistant, low growing (ground cover), and shade tolerant request: I am looking for a variety of species that not only fit the above preferences, but also a few other things. ...
view the full question and answer

Will wax myrtle (Morella cerifera) grow in Roswell NM?
September 29, 2011 - We live in Roswell, NM. Will a wax myrtle tree live in our climate and soil?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center