Tree and Shrub Stress in Alabama: Late-Summer Signs & Solutions

Chris Gregory • October 12, 2026

Tree and Shrub Stress in Alabama: Late-Summer Signs & Solutions

Alabama’s late-summer heat can be tough on trees and shrubs.

By August and September, Birmingham homeowners may begin noticing wilting leaves, brown or scorched edges, premature leaf drop, or other changes in their landscape.

The challenge is that many of these symptoms can look similar. Drought, root stress, disease, and insect activity can all cause plants to show signs of decline.

At TDI Services, our team can help assess what may be affecting your landscape and recommend the right next steps for healthier trees and shrubs.

Why Late Summer Is Hard on Trees and Shrubs

Alabama's hot, humid summers can be challenging for ornamental plants.

Trees and shrubs may spend weeks dealing with:

High temperatures
Limited rainfall
Rapid moisture loss
Heat reflected from pavement and hardscapes
Increased insect activity
Disease pressure
Root stress

Recognizing signs of stress early can help you address potential problems before they become more serious:

Wilting
Yellowing leaves
Brown or scorched leaf edges
Premature leaf drop
Stunted growth
Thinning foliage
Visible insect activity

Wilting Doesn't Always Mean Your Plant Needs More Water

Wilting happens when a plant is losing moisture faster than its roots can replace it. While heat and dry soil are common causes, adding more water is not always the answer.

Too much moisture can also contribute to root problems and poor soil conditions.

If a plant continues to wilt despite proper watering, it may be time to take a closer look at the surrounding soil, roots, and overall plant health.

Is Your Landscape Showing Signs of Stress?

Wilting, discoloration, and leaf loss can have several causes. Identifying the underlying issue is the first step toward protecting your plants.

Learn About Our Tree & Shrub Program

Leaf Scorch Can Follow a Hot Alabama Summer

Have you noticed brown edges or crispy areas on your leaves?

This may be leaf scorch, which can occur when plants lose moisture faster than they can replace it.

Heat, drought, dry conditions, and root problems can contribute to scorch symptoms.

Leaf scorch often appears along leaf margins or between the veins.

While damaged leaf tissue will not turn green again, proper care can help support the remaining healthy growth and reduce additional stress on the plant.

Drought Stress Can Affect Trees and Shrubs

Even plants that have survived previous Alabama summers can experience drought stress when hot conditions persist.

The Alabama Cooperative Extension System (ACES) provides helpful guidance for caring for trees and shrubs during periods of heat and drought.

Checking soil moisture, watering deeply when needed, and paying attention to site conditions such as sun exposure and drainage can help reduce unnecessary stress on landscape plants.

Different plants have different needs, so care should be based on the specific conditions in your landscape.

Pest Pressure Can Increase Late in the Season

Late-summer conditions can bring increased insect activity and additional stress to vulnerable ornamental plants.

Signs of possible pest activity include:

Chewed or damaged leaves
Holes in foliage
Discolored leaves
Sticky residue on leaves
Webbing
Visible insects
Premature leaf drop

Correctly identifying the pest matters because using the wrong treatment may affect beneficial insects without solving the actual problem.

Stress Can Make Plants More Vulnerable

Trees and shrubs that are already stressed by heat, drought, or root problems may become more vulnerable to insects and disease.

Ongoing tree and shrub care can help support plant health by addressing issues such as nutrition, pests, and overall growing conditions.

Could Your Trees or Shrubs Be Under More Stress Than You Realize?

Our team can help assess signs of environmental stress, pest activity, and other landscape concerns and recommend the next steps.

Learn About Our Tree & Shrub Program

What Should You Do If Your Trees or Shrubs Look Stressed?

Before applying treatments, carefully evaluate plant condition and site factors:

Where the damage is occurring
Whether the entire plant is affected
Whether symptoms are limited to certain branches
The condition of the leaves
Soil moisture
Signs of insects
Recent weather conditions

Avoid applying fertilizer or pest treatments until you have a better understanding of what may be causing the problem. T

Treating the wrong issue can add unnecessary stress to an already struggling plant.

If the cause is not clear, a professional can help determine whether heat, moisture, soil conditions, insects, disease, or another issue may be contributing to the decline.

Help Your Landscape Head Into Fall in Better Shape

Late summer is a good time to pay closer attention to trees and shrubs that have struggled through Alabama’s heat.

Key late-season landscape management practices include:

Monitor soil moisture
Watch for continued wilting or leaf drop
Check leaves for scorch or discoloration
Look for signs of pest activity
Avoid unnecessary fertilizer or treatments
Keep an eye on plants that continue to decline

Addressing potential problems now can help you better understand what your landscape needs as temperatures begin to cool.

Why are my tree leaves turning brown in late summer?
Brown leaves can be caused by drought stress, leaf scorch, insect damage, disease, or root problems. If the browning continues or spreads, it may be helpful to have the plant evaluated.
Why are my shrubs wilting even though I water them?
Too much water, poor drainage, root problems, or compacted soil can make it difficult for a plant to take up moisture properly, even when the soil is wet.
What is leaf scorch?
Leaf scorch happens when a plant loses moisture faster than its roots can replace it, often causing leaf edges or areas between the veins to turn dry and brown.
Can insects cause trees and shrubs to lose leaves?
Yes. Some insects feed on leaves or plant sap, which can lead to discoloration, leaf damage, premature leaf drop, and reduced growth.
Should I fertilize a stressed tree or shrub?
Not always. Fertilizing a plant that is already stressed may not solve the underlying problem. It is better to first determine whether drought, root conditions, pests, disease, or another issue is causing the decline.
When should I call a tree and shrub professional?
Consider contacting a professional if you notice continued leaf loss, branch dieback, significant pest activity, or persistent wilting despite proper care.