Native Plants
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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
rate this answer
Friday - February 06, 2009
From: Llano, TX
Region: Southwest
Topic: Pruning, Trees
Title: Trimming a bur oak in Llano, TX
Answered by: Janice Kvale
QUESTION:
We have a beautiful, large Burr Oak next to our house. This tree has many large lateral branches. I have trimmed dead branches, but no other trimming. It grows a lot of "suckers" during growing season. Several of the branches droop almost touching the ground. I would like to clean up this tree but don't want to do the wrong thing. The tree appears very healthy. Any trimming tips would be appreciated. ThanksANSWER:
In caring for your Quercus macrocarpa (bur oak), Mr. Smarty Plants sees three options for you. First, do nothing and let it behave in its natural way, suckers and all, with the wind pruning dead limbs. Second, research how to prune and do it yourself. And, third, engage a licensed, certified arborist. The description you have given of your tree makes it clear that you have a very special and valuable feature in your landscape. You may want to consider the third option, as arborists are specialists in the care of trees. There is no substitute for trained eyes and professional advice regarding the care of such an important tree and when it comes to the potential for tree disease and pruning large trees, they have all the right tools and take all the risks.
However, it sounds like you are interested in learning about trimming oaks, so let's explore that. You are wise to be concerned about doing the right thing as oak wilt disease is common in Texas. Oak wilt disease is a caused by a fungus introduced into the trees by the Nitidulid beetles, which are most active in warm weather from February through May. Cuts or wounds to the tree may allow introduction of the beetles. The best time to prune the tree would be during a cold snap November to January. Branches that are completely dead may be removed at any time; it is only open wounds in living tissue that are attractive to the offending beatles. No matter what time of year you remove living branches of oaks the wounds should be immediately covered with pruning paint. Learn more about Oak Wilt at the Texas Oak Wilt Information Partnership page "Guidelines for Proper Pruning to Prevent Oak Wilt Infection" and "Studies on Pruning Cuts and Wound Dressings for Oak Wilt Control." Both have excellent information on treating pruning cuts. Alternatively, check out this Texas A&M Extension site "Follow Proper Pruning Techniques" on pruning or this ehow.com site, "How to Trim Your Trees."
In short, you may want to postpone this trimming job, however it is accomplished, for a few months.
More Trees Questions
Toxicity of catalpa wood?
June 05, 2012 - Is the sawdust from cutting up a catalpa tree or the smoke from burning the wood toxic?
Thank you,
view the full question and answer
Container plant to grow in late afternoon sun
July 02, 2011 - I have a shaded brick walkway that leads to my front door. It faces west, and can get very hot late afternoon Houston sun, although it is shaded for the remainder of the day. I have been successful ...
view the full question and answer
What will grow under a magnolia in Houston?
May 21, 2010 - What will grow under a magnolia tree in Houston? The area is shade and partly sunny.
view the full question and answer
Wild plums for jelly from Conroe TX
December 18, 2012 - Do wild plum trees grow in my area? I want to get some next summer to make plum jelly.
view the full question and answer
What is the growth rate of the table mountain pine in zone 6 & 7?
July 14, 2009 - How fast growing is the table mountain pine in Zones 6 and 7 in the Appalachians? What is the growth rate?
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |