Rent Shop Volunteer Join

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

Monday - August 02, 2010

From: Boerne, TX
Region: Southwest
Topic: Trees
Title: Oak saplings in Boerne TX
Answered by: Barbara Medford

QUESTION:

Is there anything I can do to kill the oak tree saplings that come up around my oak tree? I have a nice raised flower bed around the tree and now it's full of these saplings. Thanks for your help.

ANSWER:

This is a very popular question this time of year. Rather than refer you to the numerous previous questions we have answered on the subject, see this excerpt from one of them:

The sprouts coming up could either be suckers off the roots of your existing oaks, or seedlings from a very good crop of acorns. Either way, they need to be physically removed, by pulling them out. If the terrain permits, you could try mowing very low. If you deny the roots of acorn seedlings the ability to produce leaves long enough, the roots (and the seedling) will starve. 

No, there is no spray you can use, it would kill plants around it and even the parent tree. Mow it or pull it out, and stay ahead of it.  Any acorns that fall should be quickly picked up and discarded. If you wait for the squirrels to get them, they will just go plant them in some nice soft dirt, probably in your flower bed. If they have gotten to "sapling" size, you may have to go after them with a shovel, so try not to let them get that big. 

 

More Trees Questions

Texas Mountain Laurel oozing sap in Spicewood, TX.
July 05, 2012 - We have a Texas mountain laurel that seems to be sweating. Oozing sap with no apparent signs of any type of bore holes, or holes made from any birds.
view the full question and answer

Sudden death of Texas Mountain Laurel
April 14, 2008 - Last year, my 15-year-old Mountain Laurel died very suddenly. The leaves began to curl up and turn brown, and it was dead within about 15 days. What happened?
view the full question and answer

Trophy tree for Spicewood, Texas
September 30, 2008 - I want to plant a trophy Mesquite at the bottom of the hill, in Spicewood. I'm told that it may not flourish, because of the soil in my area. If that is the case, what would be a striking tree as a...
view the full question and answer

Soils for Acacia greggii and Bauhinia lunarioides
May 02, 2007 - What kind of soil do you recommend for anacacia tree? I was stunned by the one blooming at Center. I have had one for years and it has not been happy. I figure it must be the soil.
view the full question and answer

Tx Mt. Laurel and Mex. Buckeye seed propagation in drought
July 01, 2011 - I live in the Hill Country near New Braunfels. Since I am only at my house in July and August, I would like to plant both Texas Mountain Laurel and Mexican Buckeye from the seeds harvested from mothe...
view the full question and answer

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