Tag evergreen

Things To Consider for a Healthy Tree Environment

When selecting a new tree for your home or property there are several things you should consider; location, growth speed, maximum size, critical root zone, soil, light and shade, water, surrounding plants, evergreen vs deciduous, flower/fruit/seed production, native vs nativized, and source stock. Below are some guides to help you determine the best tree for your property and your needs.

Location

The location a tree will be planted will determine how big it can get. Take into account potential obstacles for growth, such as:

• Overhead utility lines
• Structures
• Underground irrigation or utility placement
• Drainage
• Soil composition
• Light availability
• Sidewalks, driveways, or other surface features
• Pools, septic tanks, or other in-ground features
• Planned construction or renovation

Growth Speed

Different tree species grow at different rates and faster isn’t always better. Growth speed can be related to age at planting as well as environmental factors.

Maximum Size

While it may vary, certain species of trees usually have a maximum and minimum expected height, as well as expected canopy spread. It is important to consider nearby buildings, signage, overhead utilities, and aesthetics when selecting a specific species of trees. It can be difficult and dangerous for the tree and for people to try to reduce the size of an already-mature tree. We do not recommend topping trees as a way to manage size.

Critical Root Zone

Related to the canopy spread, the critical root zone is the area around the base of a tree where vital underground roots are present. Both large, stabilizing roots and smaller feeder roots must be considered. Restricted root space or regular ground disturbance can stress a tree and cause premature failure.

Soil

Soil acidity, moisture, and composition determine what species can grow and thrive in North Texas. Much of soil found here is dense, alkaline clay. Trees that are not suited to this type of soil will not be able to get the required nutrients it needs and will eventually show signs of stress.

Light and Shade

Some trees are well-suited to the understory (beneath the top canopy), while other need full, all-day sun. Keep in mind that sunlight intensity and direction changes through the seasons, and can be affected by the growth of nearby plants, as well.

Water

Newly-planted trees need careful watering, but even established trees have a preferred level of soil moisture. Excessive soil moisture can help some species thrive, but contribute to disease in others. Consider where water pools during heavy rains, and where runoff goes when deciding where to plant your tree.

Surrounding Plants

Turf grass, other ground cover, and other plants contribute to the competition for water and nutrients in the soil. As a tree grows, it may cast different shade or cause surface distortions that affect surrounding plants.

Evergreen vs Deciduous

Deciduous trees that drop leaves every fall can feature fall color, but often create more leaf litter. Evergreen trees, whether broad-leafed or needle bearing do not drop all their leaves at once, but are generally the same shade of green throughout the year.

Flower, Fruit, and Seed Production

Spring blooms and seasonal fruit can attract birds and pollinators, contributing to the landscape’s beauty. Some types of flowers and fruit can cause concrete staining or be hazardous to pets.

Native vs Nativized

Native species generally do better than imported species, but there is a limited selection. Imported species can be adapted to climate and soil, and give a variety of size and foliage options, but may become invasive.

Source/Stock

Nursery stock from a specific tree farm or source can be prone to particular structural issues and diseases. If not cared for properly at the nursery, trees may need a long period of rehabilitation after planting. Selecting a larger tree over a smaller one is not always better.

While it may seem logical to plant the largest available specimen of a desired tree species, research has shown that planting smaller trees leads to more growth in the first year, and likely to better early establishment. Planting younger trees gives the tree owner more chances to provide the best care.

Tree Recommendations

We have a blog dedicated to helping you choose the best trees for North Texas.

Additional Resources

The Texas A&M Forest Service has published an online tree selector. On their website you are able to select a county and tree size for quick recommendations. In addition the International Society of Arboriculture offers user-friendly guidelines for choosing the right tree for your yard.

At Texas Tree Surgeons, we love trees and we love our community! We hope this blog on tree selection will help you choose the right tree for your home. We have additional resources on our North Texas Tree Owner’s Guide. If you would like immediate assistance with your trees please contact us today.

• Tree Selection
• Tree Planting
• Tree Care
• Common Tree Issues
• Getting Help with Your Trees

The effects of the historic freezing temperatures in February 2021 are widespread. After the ice thawed and the snow melted, many people were left with frost-damaged or dead landscaping. While much of the damage from the rapidly-changing temperatures is obvious, trees and plants have also suffered internal damage, and will likely show signs for years to come.

Will the freezing temperatures and winter weather kill my trees?

Unfortunately, we can already see the signs of frost-killed plants: leaves and other plant tissue that appears wet, soft, brown/black, or dried up. This type of damage is prevalent in succulents, pittosporum, loropetalum, geraniums, and related plants. Palms will likely also suffer extensive frost damage, but it is best to wait until the summer to see if they put out new growth. 

Evergreens and more frost-resistant trees and shrubs should fare better. Common examples of this group of plants are yaupon hollies, wax myrtles, and crape myrtles. These species may brown in sections, but ultimately survive. Even if they survive, some of the brown sections will never recover. It is best to wait until summer for new growth to see the extent of the damage. 

Trees with thinner bark, such as fruit trees and Japanese maples, may leaf out in the spring and appear unharmed. Damage to the inner layers of the tree, however, can prevent proper movement of water and nutrients in the tree’s vascular system and can lead to stress symptoms in the summer, appearing as a sudden browning and wilting of the leaves. 

Larger native trees such as red oak and pecan may show dieback or brown sections, but should recover if cared for properly. Live oaks may show browning, but should recover and put out new leaves in spring.

Frost Cracks

Frost cracks are caused not by surface frost, but by fluctuating temperatures, and are most-often seen on the southern sides of trees, which get more direct sunlight. On a cold but sunny day, the sun warms the exposed areas of the tree, causing expansion. When temperatures drop rapidly at night, the bark cools and shrinks faster than the tissue underneath. As the bark shrinks, it splits vertically over areas where the underlying wood is still expanded. Splitting and cracking is most common in areas where there are wounds or other damage that has weakened the bark. Young trees and trees with thin bark are especially susceptible. Frost cracks are rarely fatal and will heal over time, but can be entryways for disease and insects. Stressed trees exhibiting cracks should be given special attention and should be properly fertilized and cared-for to help protect against diseases and insect activity.

CAN I DO ANYTHING TO HELP MY TREES RECOVER FROM THE FREEZING WEATHER?

 For freeze-damaged plants, it is important to provide proper care in the short and long term. 

 WHAT YOU SHOULD DO NOW: WAIT!

• Watch for signs of damage.
  • Browning and widespread leaf drop will be common.
  • Wait until spring or summer before deciding if a plant is salvageable.
• Water correctly.
  • Once the ground has thawed out, and temperatures are consistently above freezing, do a deep soak watering for the roots of trees.
    • Use a hose, not sprinklers.
  • Watering can help a tree with damaged leaves to take up nutrients. 

WHAT YOU SHOULD DO IN THE SPRING

• Have frost-damaged trees evaluated by an local ISA Certified Arborist.
  • Every tree species will react differently to the freeze.
  • Factors like location, soil conditions, and even the movement of the storm front will affect the trees’ ability to survive.

WHAT YOU SHOULD DO OVER THE NEXT FIVE TO SEVEN YEARS

• Fertilization and proper watering will be key to freeze-damaged trees.
  • Nutrient-rich soil with beneficial bacteria and fungi can speed a tree’s recovery.
• Do not use herbicides around affected plants.
  • Never use a “weed and feed” product near your trees.
• Continue proper maintenance trimming and care.
  • Remove dead wood and loose bark, thin for light and air.

At Texas Tree Surgeons, we love trees and we love our community! The freezing weather in February 2021 caused damage not just to North Texas’s infrastructure, leaving many without power, water, and shelter, but also to our urban forest. Once the needs of our residents have been met, it’s a good time to think about how best to care for our frost-damaged trees and shrubs. We are here to help you evaluate the damage to your landscaping and make an informed decision about how to proceed. If your trees and shrubs don’t leaf out in the spring, or you have any other questions, let us know! We have a team of ISA Certified Arborists ready to help in any way we can!