Archives May 2021

What To Do With Freeze-Damaged Ash and Elm Trees

by Texas Tree Surgeons Extreme Weather, Resources, Tree Health Care

The information in this article applies only to certain types of trees, such as elms, ashes, figs, crape myrtles, and even some other landscape plants like loropetalum. For information on what to do with your oaks or palm trees, see our other articles:

Oaks Looking Bad?

Will Palms Survive?

As with oaks, many species of trees, such as ash and elm, were severely damaged or killed by the freezing weather in February 2021. Even if your tree has not leafed out, or shown only sparse growth, there may be another option besides replacing it.

What Can You Do? Watch For New Sprouts!

  • Trees that have died from the ground up may still have living root systems.
    • If the tree cannot support the old growth, the energy in the roots may be directed to putting up new shoots around the base of the tree.
  • These new tree shoots have a great advantage over transplanted trees, as they are growing from a well-established root system.
    • While the new sprouts start out small, their growth will be supported by robust roots.
    • Local tree farm stocks are depleted after the storm, so it may be hard to find a suitable replacement.
    • Even with stump grinding, a transplanted tree should not be planted in the same place at the old tree.

Tree in North Texas showing extensive above-ground dieback and new growth from the roots.

Tree with extensive above-ground dieback showing new growth from the roots.

Remove The Dead Tree Carefully

  •  If you want to encourage the new sprouts into maturing into full trees, they must be protected from damage.
  • When removing the freeze-damaged tree, take care not to disturb any shoots growing around the base of the trunk.
    • Do not grind the stump, as this will destroy the established root system.
  • As the sprouts mature, begin to remove some of them, leaving one or two main shoots.
    • Once the main shoots are a year old, you can select one to continue cultivating and remove the others.
  • If you have a tree, such as an ash, that is threatened by insect or disease activity, consult an ISA Certified Arborist to ensure that preventative action is taken, if needed.

At Texas Tree Surgeons, we love trees and we love our community! The freeze of February 2021, like storms and tornadoes before it, will alter our North Texas urban forest in many ways. As we continue to monitor the response of trees and plants, we will continue to keep our community and customers informed, so that they have all the information necessary to take the best care of their trees. We are always happy to answer any questions you have about your trees freeze-damaged or not, so contact an arborist today!

Are Your Oaks Looking Bad? They are Still Recovering from the Freeze!

by Texas Tree Surgeons Events, Extreme Weather, Resources, Tree Health Care

The unprecedented winter weather in February 2021 will have a lasting effect on North Texas. Many trees and plants have already failed to come back from the freezing temperatures and had to be removed. Others may be showing signs of new growth, but are still struggling. The Texas A&M Forest Service and other experts have reiterated the need to care for freeze-damaged and stressed trees to give them the best chance of recovering.

WHAT CAN YOU DO? KEEP WAITING!

Freeze-stressed trees, especially oaks, may be putting out some new leaves, but are much less vigorous than in previous years.

  • Continue to monitor them, and do what you can to alleviate stress.
  • Water your stressed trees properly, and make sure not to flood the roots with overwatering.
  • Avoid preventative insecticide or fungicide treatments; treat only those pests that are currently active in the tree.

Texas live oak tree showing signs of freeze damage and related stress

Live oak showing signs of freeze-related stress

Texas red oak tree showing signs of freeze damage and related stress.

Red oak affected by the freeze in Februrary 2021

RECOVERY WILL TAKE A LONG TIME

Whatever the progress of your tree’s recovery, it will take months and possibly years to regain the health it had before the winter storms.

  • If a tree has shown no signs of new growth by July, it will likely never recover.
  • Trees with sparse growth may be able to leaf out normally in a year or two, so consider waiting to remove.
  • As always, contact an ISA Certified Arborist to evaluate your trees’ progress and make recommendations for care.

At Texas Tree Surgeons, we love trees and we love our community! We are constantly in discussion with experts in the fields of arboriculture and horticulture throughout Texas as we try to manage the effects of February’s freeze. Our ISA Certified Arborists are happy to assess your trees and help you provide the best care during this period of residual stress. As we move into the heat of the summer, potential for heat-related stress increases, so contact an arborist today!