Summer is a beautiful time of year in the St. Louis area, but it can also be one of the most challenging seasons for trees. Extended periods of heat, limited rainfall, high humidity, and occasional severe storms can place significant stress on even healthy, established trees.

The good news is that many tree problems show warning signs before they become serious. Taking a few minutes to inspect your trees during the middle of summer can help you identify issues early and potentially prevent costly damage down the road.

Use this simple checklist to evaluate the health of your trees and determine whether professional attention may be needed.

Why Summer Is So Tough on Trees

Trees work hard during the growing season. They require large amounts of water and nutrients to support new leaves, branches, and root growth. When temperatures climb into the 90s and beyond, moisture can disappear from the soil quickly, creating stressful conditions.

Young trees are particularly vulnerable, but mature trees can also struggle when drought, insects, disease, or storm damage are added to the mix. That’s why mid-summer is an ideal time to assess your landscape and catch problems before they worsen.

Check for Wilting, Curling, or Scorched Leaves

One of the first signs of summer stress often appears in the leaves.

Leaves that wilt, curl, turn brown around the edges, or appear scorched may indicate that a tree is struggling to obtain enough moisture. While occasional leaf damage is not always cause for concern, widespread symptoms throughout the canopy deserve closer attention.

Trees experiencing drought stress often begin conserving resources, and the foliage is usually the first place homeowners notice changes.

Watch for Early Leaf Drop

Most trees should maintain a healthy canopy throughout the summer months. If you notice large numbers of green leaves falling well before autumn arrives, your tree may be signaling distress.

Early leaf drop is often a response to environmental stress, particularly during periods of prolonged heat and dry weather. In some cases, it can also indicate disease or root-related issues.

A few fallen leaves are normal. Significant leaf loss during July or August is worth investigating.

Inspect Branches for Dieback

As you examine your trees, look carefully at the ends of branches. Dead twigs, bare branch tips, or sections that fail to produce leaves may indicate dieback.

Branch dieback can occur when a tree is unable to move sufficient water and nutrients throughout its canopy. It may also be associated with disease, insect activity, root damage, or internal decay.

The earlier these issues are identified, the easier they are often to address.

Look for Insect Activity

Summer is peak season for many tree pests. While not every insect poses a threat, certain infestations can weaken already stressed trees.

Look for unusual holes in leaves, sawdust-like material around the base of the tree, damaged bark, or excessive insect activity on branches and foliage. Trees under environmental stress are often more susceptible to pest problems because their natural defenses may be compromised.

Regular inspections can help identify issues before significant damage occurs.

Don’t Overlook Watering Mistakes

Many homeowners assume more water is always better during hot weather. In reality, both underwatering and overwatering can create problems.

Trees generally benefit from slow, deep watering that encourages roots to grow deeper into the soil. Frequent shallow watering may not provide sufficient moisture where it is needed most.

Mulch can also help conserve moisture and regulate soil temperature, but it should be applied correctly. Piling mulch against the trunk, often called a “mulch volcano,” can lead to additional health problems.

Five Minutes in Your Yard Could Reveal a Serious Problem

A quick walk around your property can often uncover warning signs that might otherwise go unnoticed. Changes in leaf color, thinning canopies, dead branches, and insect activity are all indicators that a tree may need professional evaluation.

The sooner a problem is identified, the more options are typically available to protect the tree’s health and stability.

When to Call a Tree Care Professional

If you notice multiple symptoms of stress, visible dead branches, signs of disease, or concerns about a tree’s overall condition, it may be time to consult a professional.

A trained tree care specialist – especially a certified arborist – can assess the tree’s health, identify underlying issues, and recommend solutions that help reduce risk and improve long-term vitality.

Contact Hansen’s Tree Service

Missouri summers can be tough on trees, but early intervention often makes all the difference. Regular inspections and proactive care can help your trees remain healthy, attractive, and resilient despite the challenges of heat, drought, and severe weather.

If you’re concerned about the condition of your trees, contact Hansen’s Tree Service today. Our experienced team can evaluate your landscape, identify potential problems, and provide the expert care your trees need to thrive throughout the growing season.