En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Tree with tap root for small area near Dallas

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
1 rating

Monday - September 07, 2009

From: Coppell, TX
Region: Southwest
Topic: Trees
Title: Tree with tap root for small area near Dallas
Answered by: Nan Hampton

QUESTION:

Mr. Smarty Plants, I live in Coppell, TX (a suburb of Dallas) & am looking for a tree to plant near our pool to provide some shade. The current tree (a silver leaf maple) is dying. My husband thinks we need a tree w/ a tap root system. The size of the area for planting the tree is about 5 ft x 5 ft. What would you suggest? Thank you very much.

ANSWER:

Your husband is no doubt worrying about the roots of the tree causing damage to the pool and other nearby structures.  Here is information from the answer to a question we received a few weeks ago about trees with tap roots:

"Although trees are generally divided into two groups by root type—tap root trees (such as oaks, hickory, walnut, conifers) and lateral, or fibrous, root trees (maples, ash, cottonwood)—this distinction is most evident as seedlings or saplings. Once the tree is planted and begins to mature, the distinctions between the root types become less pronounced. Then, the depth and lateralness of the roots is greatly dependent on the soil condition. Highly compacted soils, soils with low oxygen content and soils where the water table is near the surface are not likely to produce a strong tap root. Their roots are more likely to be lateral and located very near the surface with the majority of the roots located in the top 12 inches of soil. Also, it is important to realize that the spread of the roots can be at least 2 to 4 times greater than the drip line of the branches.

You can read the recommendations from Iowa State University Extension Service for Sidewalks and Trees which bases the distance trees should be planted near pavement on the mature height of the tree. Their recommendations are:

1. trees with a mature height of less than 30 feet, 3-4 feet from pavement,
2. trees with a mature height of 30 to 50 feet, 5-6 feet from pavement,
3. trees with a mature height of greater than 50 feet, at least 8 feet from pavement."

Because of the small size of your space, I will suggest several smaller trees.  Here are some trees that have a maximum height of 30 feet or less:

Cotinus obovatus (American smoketree).  Here is more information.

Frangula caroliniana [syn. = Rhamnus caroliniana] (Carolina buckthorn).  Here is more information.

Cercis canadensis (eastern redbud) has a rapid growth rate of 15 to 30 feet.  Here is more information

Viburnum rufidulum (rusty blackhaw).  Here is more information.

Ilex vomitoria (yaupon).  Here is more information.

You might be able to get away with smaller medium-sized trees.  All of these next ones would be considered medium-sized or small trees with a maximum height of less than 50 feet.

Fraxinus texensis (Texas ash)  has a rapid growth rate and is long-lived, 30 to 45 feet.  It  also has beautiful fall foliage.  Here is  more information.

Acer grandidentatum (bigtooth maple) has both a tap root system and lateral roots, a moderate growth rate up to 50 feet and beautiful fall foliage.  Here is more information.

Quercus laceyi [syn. = Q. glaucoides] (Lacey oak).  Here is more information.


Cotinus obovatus

Frangula caroliniana

Cercis canadensis

Viburnum rufidulum

Ilex vomitoria

Fraxinus texensis

Acer grandidentatum

Quercus laceyi

 

 

More Trees Questions

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

Pruning live oak in Austin
April 28, 2012 - Hi, We recently purchased a house in South Austin and there is a huge Live Oak Tree about 6 feet from the back door (so so so love it!) The only real issues I have so far are: 1. Needing to trim a ...
view the full question and answer

Which native palms survived severe cold from Las Cruces NM
June 12, 2011 - Can you tell me which of the north American native palms survived the severe cold last year that hit El Paso and Las Cruces?
view the full question and answer

Problem with baldcypress tree
May 27, 2011 - Two of my three 20 year old Bald Cypress trees appear to have leafed out but are now brown in parts of the tree. The brown area is at the tops of the trees which are probably 40 ft. high. They were...
view the full question and answer

Susceptibility of Shumard oaks to oak wilt
March 25, 2006 - I have planted a red oak tree. I am still trying to locate the ID tag for the type. I planted it two or three years ago. I purchased the tree from either Lowes or Home Depot. Is there a type of red oa...
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