Host an Event Volunteer Join Tickets

Your gift keeps resources like this database thriving!

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?

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

Sunday - November 06, 2011

From: Clayton, NC
Region: Southeast
Topic: Pruning, Trees
Title: Safe branch length of oaks in Clayton NC
Answered by: Barbara Medford

QUESTION:

I have 2 very large oak trees in my yard and I am concerned about the length of the branches over the house and driveway. Most seem larger than 4" in diameter. What is a safe length for these branches?

ANSWER:

The tree decides what its best length of branch is, depending on how many leaves it needs to manufacture food for the tree. What you need to worry about is the safety of anything that might be under those branches. Utility lines? Children's play area? Roof? We don't recommend that trees come in contact with the roof or walls of a structure; they are a highway for rodents, ants and other undesirables that will make their way into your house.

A pruning decision, however, is not something we could make sight unseen. If you are concerned that some of your oak branches are where they might be harmful, you need to consult a trained, licensed arborist. Trees as large as yours sound need people who not only know what to cut but how to manage up in a tree or on a tall ladder. They know when it's safe to cut (November is probably good in North Carolina) and how or whether to seal the wounds in the trees after they are cut. Oak trees are wonderful and valuable assets to your property-get someone that knows what they are doing to come in and give you some advice.

 

More Pruning Questions

pruning crape myrtle (ugh, non-native)
March 05, 2012 - We would like to plant a Dynamite Crape myrtle in front of our front window. They grow 20' to 30'. Can I trim it each year to about 15' to 20'? Should we plant it approximately 5 feet from the ...
view the full question and answer

Controlling oak suckers in Austin
January 26, 2012 - I live in Austin TX and have one particular native Oak tree in my back yard with a large bed around it. I don't plan on planting anything else in the bed since it is already nicely landscaped along ...
view the full question and answer

Spring care for Garrya ovata from Pflugerville, TX
February 24, 2014 - Hello again, Mr. S-P, I planted a Mexican silktassel in April 2012 (purchased at the WFC). It has done well, but the leaves are bronzed and splotchy from this winter's freezes. All the stems are...
view the full question and answer

Survival of yucca plant mowed down in Oklahoma
April 15, 2009 - I have a yucca plant that came from a very old plant of my late father, and had transplanted it 6 years ago and it came back every year and bloomed. This morning I went outside and noticed my husband...
view the full question and answer

When Should I Prune Texas Sage?
July 07, 2016 - How and when do you prune Texas sage to encourage thicker foliage?
view the full question and answer

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