Tag red maple

In October 2019, Dallas was hit with a devastating tornado. As part of ongoing recovery efforts, the Texas Trees Foundation is partnering with the Arbor Day Foundation and International Paper to give away 500 free trees to Dallas residents who were affected by last year’s storms.

Registration is open and continues until all trees have been allotted. The trees will be available for pick-up Saturday, October 31st.

This round, the available species are:

• Texas Redbud
• Chinkapin Oak
• Shumard (Red) Oak
• Desert Willow
• Red Maple

All of these are great Texas trees, but if you wonder which one might be best for your yard, get in touch with your arborist. We are happy to make a recommendation!

For more information about the tree giveaway and to register, visit the Texas Trees Foundation site.

At Texas Tree Surgeons, we love trees and we love our customers, and we are excited about these local programs to encourage tree planting! If you have any questions about the best way to plant a tree, or any other tree questions, let us know!

Tree trimming or tree pruning in Texas is generally best when done after temperatures cool off in the fall and before buds begin to grow in the spring. Removal of dead, broken, or damaged limbs can be done anytime. The worst time to trim a tree is in the spring just after it has budded out. The tree will already have used its energy to start new growth, and will not be able to recover from the trimming as well or as quickly. At Texas Tree Surgeons, tree trimming is the most common service we provide, and is essential to maintaining health and safety in our urban forest.

Why is it best to trim trees in the fall and winter?

Trimming trees at the right time is crucial to keeping them healthy. During the fall, the tree’s internal systems begin to slow, as it prepares to go dormant (similar to hibernation in animals). Entering a dormant state helps the tree survive the winter cold, frost, and ice. As the weather cools, the water in tree tissue begins to be converted to starch, which insulates cellular tissue against freezing damage. During this period of dormancy, trees are able to heal the wounds made from pruning before the stressors of spring, like disease and insects, arrive.

Proper trimming is not just a matter of timing, however, but also of technique. Trimming your trees at the proper time in the fall or winter cannot compensate for the damage done through over-trimming, lion-tailing, or topping. Even though a dormant tree can better withstand these damaging types of trimming, the overall health of the tree may be irreparably harmed.

Why is it important to use a company with certified arborists to trim your tree?

Every tree is different. Two trees of the same species planted next to each other may still react differently to their surroundings. Having an ISA Certified Arborist examine your trees before trimming is crucial to ensuring proper care. In a yard with different tree species, there may be a range of trimming needs. A certified arborist can assess each individual tree to make the best recommendations for trimming, taking into account species, environment, disease or pest activity, and the tree’s natural life cycle. Improper trimming at the wrong time of year can cause a tree’s health to decline substantially. A certified arborist’s knowledge of tree biology and trimming best practices leads to the best trimming recommendations for your trees.

Is there a best time to trim a particular species of tree?

While it is generally best for all trees to be trimmed in the fall and winter, it is important to be aware of issues particular to a given species.

Oaks:

• The best time to trim oak trees in Texas is in the fall and winter.
  • It is critical to avoid trimming during oak wilt season (February-July) if at all possible.
  • Live oaks typically do a leaf exchange in late winter so it is better to trim them in late fall or early winter.
• Dead and broken branches can be removed at any time.

Maples:

• The best time to trim maples is fall and winter.
  • Pruning in the early spring can lead to sap leaking from the pruning cuts.
  • Maple trees are one of the few trees that have fall color in Texas so pruning after the leaf drop is usually preferred.

Elms:

• Elms are hardy and native to Texas. They are typically the first to get their leaves and the first to lose their leaves.
  Trimming elms in the fall and in the winter is best to avoid sap leaking.
• Elms are prone to rotting where large pruning cuts are made or poor puts are made so conservative trimming is best.
• In the parts of North America where Dutch elm disease is present, elms should be trimmed before March.

Crape Myrtles:

• Crepe Myrtles produce flowers on each year’s new growth.
  • Trimming in the fall leads to more blossoms in the spring.
  • Trimming in the late spring will reduce the number of flowers the following year.
• For the health of the crape myrtle, the best time to trim is winter.
  • Topping crape myrtles is never a good practice.

Bradford Pears:

• Bradford pears can be safely trimmed at any time.
• Proper structural pruning when needed is very important for Bradford pears because their natural growth patterns often lead to weakness at branch joints.

Fruit Trees:

• Structural pruning for fruit trees should be done in the winter.
• Trimming for fruit production should be done just after bloom in early spring.

At Texas Tree Surgeons, we love trees and we love our customers. In the winter, it can be easy to forget about our trees, as their leaves are gone and we spend less time outside. However, remembering that winter is the best time to trim trees can lead to healthier, more beautiful trees in the summer. We are always happy to come out and assess your trees for their particular trimming needs. When tree trimming must be done out of season, we are able to make sure that best practices are followed to minimize any negative effects. One of our certified arborists can make personalized recommendations based on your trees. Get in touch today!

After a devastating weather event like the tornadoes on October 20, 2019, the damage can be hard to assess, let alone start to repair. While damage to homes and other structures is of utmost importance to the community, addressing the damage to our urban forest, and determining what can be saved, is a key component of recovering after destruction.

Cleaning up downed trees is the first priority in an emergency situation. Fallen trees can prevent first responders and repair crews from accessing damaged utility lines and dangerous structures. Once the trees on the ground have been addressed, however, we must think about those left standing. After a high-wind event like a tornado, the trees left standing often have severe limb breakage and defoliation, or loss of leaves. Both of these issues have short- and long-term consequences, that must be understood.

Tree Safety Is Key

As soon as possible after a storm, owners of damaged trees should take a few steps to ensure there is no further damage to people or property:

• Clear the area around any damaged trees of vehicles and valuables and take steps to prevent access to the area.
  • If possible, cordon off the entire dripline area (from the trunk to the tips of the branches).
  • If there is a tree that could fall on your home, consider staying out of that part of the house until the tree can be assessed.
• Once the area has been secured, contact a certified arborist to assess the damage to your trees.
  • The International Society of Arboriculture (ISA) has established the Tree Risk Assessment Qualification (TRAQ) to train certified arborists in the proper evaluation of the safety and stability of trees. Be sure to find an arborist who has completed the TRAQ program.
  • Ask the arborist about tree stabilization, such as bolting and cabling. These measures can help prevent future issues with splitting trees.
• Trees that are stable, but have lost a great amount of the canopy will probably need fertilization or other plant health care measures to recover.

Will My Trees Survive Tornado Damage?

Ultimately, the prognosis for a storm-damaged tree depends on several factors, including the species, location, soil condition, and underlying health of the tree. Based on our experience, however, certain North Texas trees should fare better than others.

• Live Oaks, Cedar Elms, Pecans, Bur Oaks – Uncertain/Wait and See

  • While these species are resilient, we are assessing them on a case-by-case basis.
  • If the tree is stable, we recommend waiting until the spring to see if new growth appears.

• Red Oaks, Maples – High Risk for Sun Damage

  • Both types of trees are susceptible to sunburn, which dries out the bark, causing it to peel off,  and exposing the sapwood underneath to damage.
  • Even if the tree is stable, the risk of stress and dieback from the winter sun is great.
  • Maples and red oaks that have lost their leaves have little protection from sun exposure.

• Crape Myrtles – High Chance of Survival

  • As long as the crape myrtles remained in the ground, they should survive.
  • Damage to limbs and safety pruning may alter the shape of the tree, but should not cause any major issues.
  • If increased insect activity is observed, consider using insecticidal soap in the winter or pesticides in the spring.

• Mulberries – Uncertain/Wait and See

  • Mulberries are fairly hardy, and may survive, but may suffer from dangerous instability.
  • Once tree is stabilized, wait to reassess during the next growing season.

• Hackberries – Uncertain

  • Have the root area examined by a certified arborist for signs of root rot or kretzschmaria.
  • Even if the tree appears undamaged, the hackberry’s tendency to develop root instability issues may make it a fall risk in the future.

• Magnolias – Unlikely to Survive

  • Extensive defoliation will likely stress the tree past the point of survival, and prevent recovery from any damage.
    • As evergreens, magnolias depend on their leaves year-round.

• Ornamentals – Likely to Survive/May Want to Replace

  • Smaller trees and ornamentals seem to fare better in high winds, as they are able to flex with the pressure.
    • One risk to smaller trees is being damaged by falling debris from larger trees or structures. If there is no physical damage, the tree is probably stable.
  • Many smaller ornamentals are understory trees, used to shade from larger species.
    • As with red oaks, risk of subsequent damage from sun exposure is high.
  • Even if the tree survives, it may not be as well-suited for its space after the damage, and owners may prefer to replace it.
    • Defoliation or wind damage may have irreparably altered the shape.

What Should I Do Now?

Whatever kind of tree you have, and however it has been damaged, contact a certified arborist to determine the best steps to take. We highly recommend fertilization for all trees impacted by storms, especially in our urban soils. If your trees are going to recover, they will need all the nutrients they can get. If your landscaping has been disturbed by the tornado, now might be a good time to adjust your mulching practices to help enrich the soil going forward. If you need guidance, we are always here to help.

At Texas Tree Surgeons, we love trees and we love our customers. We are shocked and saddened to see the widespread damage and devastation after the recent tornadoes, and our hearts go out to all those who have lost their homes. So much of our beautiful urban forest seems to have been uprooted or destroyed, and we want to do what we can to preserve what remains. We hope this overview has been helpful, and we are always available to come out to assess your specific trees for damage, stability issues, health issues, or to give you our recommendations for post-storm care. Don’t hesitate to contact us with any questions you may have.