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

Friday - May 14, 2010

From: Selma, TX
Region: Southwest
Topic: Trees
Title: Texas fan ash draining sap in Selma TX
Answered by: Barbara Medford

QUESTION:

I have a 3-year-old Texas Fan Ash tree that has recently begun to drain sap. Should I be concerned? If yes, what can I do to save the tree? Thank You!!

ANSWER:

From a previous Mr. Smarty Plants answer:

'Fantex' is a cultivar of Fraxinus velutina (Arizona ash). Rather, Fantex is a "sport", or mutant form, of ash that was selected and developed by Fanick's Nursery in San Antonio for its different leaf type—its leaves are smooth; whereas the regular F. velutina leaves are somewhat fuzzy on the underside. There is, however, great variety in the texture of the leaves of this species. Additionally, Fantex apparently has a thicker leaf and is sterile (producing no seeds). It is always grafted onto Fraxinus velutina root stock according to the Pima Arizona Cooperative Extension.

Because the "Fantex' is a cultivar of a native plant, we have no information on it in our Native Plant Database. We can tell you that the parent of this cultivar, Arizona Ash, grows naturally in Texas only in the Big Bend area of far West Texas, according to this USDA Plant Profile. This is a somewhat different environment from what you have in Selma, in Central Texas. You didn't say if there was a wound from which the sap was draining, or if it was just a general drip all over the tree. We know that the parent tree is very susceptible to borers. We have been hearing recently about the threat of the Emerald Ash Borer to native ash trees. We found a couple of websites on this pest: USDA Animal and Plant Health Inspection Service and Wisconsin's Emerald Ash Borer Information Source. Since we are gardeners, not plant pathologists nor entomologists, we recommend you contact the Texas A&M AgriLIFE Extension office in Bexar, Comal or Guadalupe counties for more information. 

Beyond that, you should consider the environment and the care your tree is receiving. Again, speaking only of the Velvet Ash component of your tree, here is a site from gardenguides.com on How to Take Care of the Arizona Ash Tree.  

Fraxinus texensis (Texas ash) is a different species altogether. You can read descriptions of F. velutina and F. texensis from Florida Cooperative Extension Service and compare them.


Fraxinus velutina

Fraxinus texensis

 


 

 

More Trees Questions

Evergreen Privacy Hedge for Long Island
June 29, 2012 - I live on Long Island and want a privacy evergreen hedge partial sun.
view the full question and answer

Native plants both deer resistant and good for erosion from North Oaks MN
August 23, 2012 - We have several partially sunny areas on hills that are prone to both deer and erosion. Our goal is to reduce runoff in an effort to preserve the watershed that provides tap water to many citizens of ...
view the full question and answer

Growing a Swamp Oak from Seed
July 02, 2014 - I have a swamp oak that I started from an acorn. Someone at a nursery stated that after 4 years I should cut it off at ground level and then allow one of the suckers to grow while keep removing the ot...
view the full question and answer

Changing colors on Mexican Plum trees from Bellaire TX
June 20, 2013 - The leaves on my Mexican Plum tree have recently started turning yellow/brown and the veins in leaves are red. Is this a watering issue or disease issue? Mites are on the leaves. This has been a ra...
view the full question and answer

Trees to replace ones lost in Westchester County, NY
May 09, 2013 - We lost a large number of trees in the forest adjacent to our home, and I plan to replant them. What species do you recommend to plant the area with natives and to keep it looking "natural."
view the full question and answer

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