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
8 ratings

Wednesday - June 01, 2011

From: Boerne, TX
Region: Southwest
Topic: Trees
Title: Will Black Walnut trees grow in Boerne TX?
Answered by: Barbara Medford

QUESTION:

Was curious if any one sells Black Walnut Trees??? They used to be around the Boerne, TX area and I wondered if we could try to grow them.

ANSWER:

This USDA Plant Profile map shows that Juglans nigra (Black walnut) grows in or near Kendall County in the Hill Country of Central Texas. If you follow the plant link to our webpage on this plant you will learn what we know about the plant, including:

"Conditions Comments: Black walnut is slow-growing especially if not in its preferred moist, fertile, sunny site. The deep tap-root makes transplanting difficult. Nuts may become a nuisance as they litter and stain. Foliage is often attacked by caterpillars, and the species is susceptible to anthracnose which defoliates trees for the season."

"Certain plants will not grow under Black Walnut trees because of the juglones that the tree puts in the soil. Walnut husks are rich in tannins and toxins. Ground husks have provided insecticides, fish poison and black dye."

You can go to our National Suppliers' Directory, type your town and state in the "Enter Search Location" box and you will get a list of native plant nurseries, seed suppliers and landscape consultants in your general area. Each has contact information, and perhaps if they do not stock the tree, they can either order it or help you find one. Please don't plant the tree until December and January. It is too hot and too dry now, plus this tree is a high user of water and likes deep, rich soils which, along with the long taproot, is going to make it difficult to survive in your area.

From our Native Plant Image Gallery:


Juglans nigra


Juglans nigra


Juglans nigra


Juglans nigra

 

 

 

More Trees Questions

Do I need to plant a male winterberry? yes
October 19, 2007 - I planted a female winterberry in early July & although I have been watering it regularly the leaves turned brown on the tips in Sept. No berries yet so will I have to plant a male? Thanks, Carol
view the full question and answer

School children planting trees native to Oklahoma and North Texas
December 07, 2009 - Hello, I'll be going into grade school classrooms to teach children how to plant trees. Perhaps they will each plant a seed in a cup to take home to plant in their yard. I may even be able to get see...
view the full question and answer

Yellowing leaves on weeping willow
August 03, 2008 - We have a 4 year old Weeping Willow, 12+/- ft. tall and this week the leaves are starting to become yellow. This willow is full and robust in appearance, best it's ever looked. We have 2 other Wee...
view the full question and answer

Lopidea texana nymphs and adults feeding on Mountain Laurel in March
April 04, 2006 - What is the species name of the bright red bug (Miridae) nymphs and adults that are feeding on Texas Mountain Laurel leaves at this time (March 24) at the Wildflower Center?
view the full question and answer

Fertilizing oaks to produce acorns
January 16, 2012 - Will fertilizing oak trees help with acorn production?
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