03/12/2021
Frost Damage on Trees
The Texas Chapter International Society of Arboriculture (ISA Texas) met on March 9, 2021, to discuss the impact of the deep freeze of 2021 on Texas trees. The top eight ISA arborists from major metro areas in Texas were on the panel. Below are some of their findings.
Trees: Wait till July 4th to fully assess the tree. It is possible that damage will not show up for several years.
If a branch is broken, make a cut below the break. Do not do a collar this year.
Do not fertilize or water established tree this Spring.
Oaks: Do nothing. Leaves are falling because they are dried out.
Cedar Elms may have a late leaf out.
Crepe myrtles: They may not bloom this year and may not leaf out till August. Be patient. After August, assess the tree. If there are no leaves, cut it to the ground and let it come back from the roots.
Newly planted trees may not have an established root system and may be at risk, especially trees under 3 inches in diameter.
Expect established figs to die to the ground, but they will probably come back.
Pittosporum shrub, Indian Hawthorns, and ground cover are at risk.
Look for splits in the trees, called frost cracks. Frost cracks will cause stress on the tree. It could result in bores, cankers or die back.
Call if you have any questions!
(214) 213-7022
