When is the Best Time to Trim Trees?

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.

Should cuts be sealed or painted after trimming?

Sealing or painting wounds after pruning cuts have been made is no longer the best indicated practice for routine trimming. Sealing paint can interfere with the tree’s natural healing process. Allowing the tree to form wound wood and seal cuts itself leads to increased tree vigor and quicker recovery. However, when there is a risk for certain diseases, like oak wilt, painting tree trimming wounds is an important protective measure.

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.

You Should Never Top Crape Myrtles

In our previous post, we discussed why topping crape myrtles is an improper practice. Topping not only destroys the natural beauty of the tree, but can leave it more susceptible to disease and insect infestation.

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!

Is There a Difference Between Tree Trimming, Tree Cutting, and Tree Pruning?

When people talk about tree care, they can use different words to talk about the same thing. You may hear “trim,” “prune,” or “cut,” just as you may hear “limb” or “branch.” At Texas Tree Surgeons, we are often asked the difference between a branch and a limb, or between tree pruning and tree cutting. Unfortunately, there is no industry standard definition for many common terms, and that can cause confusion.

A NOTE

If you visit our Facebook page, you may notice that we are categorized as a “tree cutting” business. In other places, we may be listed as “landscaping services.” Unfortunately, because there is no universal standard term for what we do, we have to find the best fit under the circumstances. At Texas Tree Surgeons, we use the term “tree trimming” to refer to the work we do.

Proper Tree Trimming Is the Key to Healthy Trees

Proper tree trimming should remove any dead or broken branches, raise the canopy and thin the crown, to allow light and air to pass freely through the tree.

Trees are living organisms, and every cut that’s made on a tree has long-term effects. Additionally, every tree is unique and has different needs dictated by its environment and history. A heavy trim may have no adverse effects on a large, healthy tree, but a tree that is under pre-existing stress or has a potential for health issues might be irreparably damaged by removing too much canopy. Furthermore, safety and stability issues may restrict the amount and type of trimming that can be performed. It is important when trimming trees to take all of these factors into account, as well as to be mindful of the weather and seasons. Improperly trimming a tree at the wrong type of year can lead to severe decline and death. 

While there are no universal standards for tree trimming, there are two sets of guidelines for the tree service industry that we at Texas Tree Surgeons follow. The first is from the International Society of Arboriculture, or ISA. The ISA is the premier international credentialing and membership organization for the tree care industry. In addition to establishing the Certified Arborist and Board Certified Master Arborist credentials, the ISA provides a wealth of resources for tree owners. The ISA guide to tree trimming (they use the term “pruning”) covers the basics of how to properly maintain mature trees. In addition to the ISA, the Tree Care Industry Association (TCIA) oversees tree service providers in the United States. In collaboration with the American National Safety Institute (ANSI), the TCIA has developed comprehensive guidelines for tree care and management. These guidelines provide the basis for all of our work proposals and trimming. Adherence to these guidelines is the best way to care for trees of all kinds, and all our certified arborists are equipped to assess individual trees and determine the best — and healthiest — way to care for them. 

Trimming visible growth is only part of tree care. Without a proper understanding of what’s happening below the ground and underneath the bark, a beautiful trim is of little use. Certified Arborists are trained to spot the signs of environmental stressors, diseases, and insects. Poor drainage and soil condition, competition with turf grass, and proximity to structures can all affect a tree’s growth. Beyond just trimming a tree, certified arborists are able to evaluate the tree holistically in order to provide the best care possible. 

Whether It’s “Tree Trimming” or “Tree Cutting,” Cheaper Isn’t Always Better

Most neighborhoods, especially after storms, will see tree trimmers going door-to-door soliciting work. While it may seem easier, and is often cheaper, to hire these crews for tree work, it is important to consider the long-term costs and complications. Tree trimmers with only a small crew and one truck may have lower overhead, but they may also have insufficient insurance to cover any incidents. Furthermore, these crews may not have the training or experience to properly trim trees. We have seen numerous large trees “lion-tailed,” or even “topped,” with all the canopy removed! While the trees may recover, they are forever changed. Professional arborists know the proper way to trim and thin trees for light, without leaving stubbed limbs and unstable trunks.

Many people are surprised that a proper and healthy tree trim often removes less than they expect. According to established guidelines, it is best to remove no more than 25% of the visible canopy. A regular trim may only remove as little as 15%, removing mostly interior growth. In addition to being more precise, proper trims may take longer or be more labor-intensive, accounting for cost differences. Some companies use terms like “Level 1” or “Level 2” trim; these terms are not universal. If you don’t understand what something means, ask! At Texas Tree Surgeons, we are always happy to explain the details of our work, and your arborist is always available, before, during, and after the job is done.

“Topping” a tree, or removing all visible canopy, does serious harm to the natural growth of the tree and can cause long-lasting damage.

Ultimately, what is important is the tree care itself, not what it is called. To give your trees the best chance to grow and thrive, look for tree trimming companies that employ certified arborists. If you have any doubts, ask for their certification number, or look for the arborist’s name on the ISA website. A properly-trained arborist should never recommend topping or lion-tailing, and should take proper precautions during oak wilt season (February-July). Never be afraid to get a second opinion. Give us a call anytime, and we are happy to have a certified arborist come out and discuss what work needs to be done and provide a free quote!

At Texas Tree Surgeons, we love trees and we love our customers, and we believe that educating our community lays the best foundation for caring for our urban forest. If you have any tree questions don’t hesitate to get in touch!