Why Your Shrubs Look Tired by August
By August, shrubs often start showing the effects of everything they’ve been through since winter. And this year, shrubs across New Jersey have had more than just a few hot July afternoons to deal with.
From an unusually cold winter and dramatic spring temperature swings to prolonged dry conditions and summer heat, 2026 has given landscape plants a lot to handle. By late summer, that accumulated stress can start showing up as browning leaves, thinning foliage, premature leaf drop, discoloration, or shrubs that simply don’t look as full and healthy as they did in the spring.
This Year’s Weather Has Been Tough on Shrubs
Some of what you’re seeing now may have started months ago. New Jersey came out of a colder-than-normal winter, with the statewide average temperature 4.3 degrees below normal, making it the coldest winter since 2014-2015.
Spring brought another challenge. Rutgers’ Office of the New Jersey State Climatologist described April 2026 as a month of “thermal whiplash.” Fort Dix reached 94°F on April 16, then just a few days later Berkeley Township dropped to 26°F.
Those rapid swings can be hard on shrubs. Warm weather encourages tender new growth, which can then be damaged by a sudden freeze. Even when that damage is not immediately obvious, early-season stress can affect how well a shrub handles the heat and dryness that follow.
Dry conditions then continued into the growing season. By May, New Jersey had experienced 10 consecutive months of below-normal precipitation. June continued the trend, and along the coast it ranked as the seventh driest June on record for the region.
June was also unusually warm, adding another layer of stress for shrubs already dealing with limited moisture. Higher temperatures increase water loss through foliage while dry soil makes it harder for roots to replace that moisture.
But We’ve Had Rain Lately. Shouldn’t That Help?
Recent thunderstorms and heavier rainfall have helped, but a few soaking storms do not necessarily erase months of dry conditions. As of August 5, New Jersey remained under a statewide Drought Warning.
The surface of the soil may feel wet after a storm while the deeper root zone is still relatively dry. Heavy summer rain can also run off compacted or very dry soil before enough water has a chance to soak in.
That means shrubs can still be showing drought stress even during a stretch when it feels like we’ve had plenty of rain.
What Drought Stress Can Look Like on Shrubs
Shrubs often show stress gradually, and the symptoms can vary depending on the species, age of the plant, and where it is growing.
You may notice leaves wilting or curling, browning along the edges, yellowing, premature leaf drop, thinning foliage, or sections of the shrub beginning to look sparse. Some shrubs may also show early fall color or dieback at the tips of branches.
Recently planted shrubs can be especially vulnerable because their root systems are still limited to a relatively small area. If the surrounding soil dries out, those plants have fewer reserves to draw from and may begin showing stress quickly.
Even established shrubs can struggle after prolonged dry weather, especially those growing near driveways, patios, foundations, or other areas that hold and reflect heat. Shrubs growing in compacted soil may also have a harder time taking up the moisture they need, even when water is available.
Not Every Struggling Shrub Needs More Water
Drought is an obvious concern this year, but it is not the only reason a shrub may be declining.
Many common shrub problems can look surprisingly similar at first glance. Yellowing leaves may point to drought stress, but they can also occur when roots are sitting in overly wet soil. Browning foliage may be related to heat or spring freeze damage, but insects, disease, root problems, or poor planting conditions can cause similar symptoms.
Where the damage appears can also offer clues. Browning concentrated on one side of a shrub may be related to exposure or reflected heat, while thinning throughout the canopy could point to a larger root or health issue. Dead branch tips, distorted leaves, spotting, webbing, or sticky residue may suggest that something other than weather is involved.
Looking at the shrub as a whole is more useful than treating a single symptom. Adding more water to a plant with poor drainage, for example, can make the problem worse.
When Is It More Than Normal Summer Stress?
Late summer often reveals problems that were easier to miss earlier in the season. A shrub planted too deeply, growing in compacted soil, or dealing with a limited root system may look perfectly healthy during cooler spring weather. Once temperatures rise and the plant has to move more water through its foliage, those weaknesses can become much easier to see.
The same is true for shrubs dealing with insects or disease. A healthy plant may tolerate some damage without showing much decline, while a shrub already stressed by drought, heat, or earlier freeze damage may have a harder time recovering.
A few brown leaves or some minor cosmetic damage at the end of a difficult New Jersey summer are not necessarily cause for concern. More widespread discoloration, significant leaf loss, repeated branch dieback, or a shrub that continues to look worse from week to week are worth a closer look.
Different shrub species also handle stress differently, so what is normal for one plant may be unusual for another. Paying attention to changes in the overall density, shape, and appearance of a shrub can help you catch problems before they become more serious.
Help Your Shrubs Finish the Season Strong
Late summer is a good time to take a closer look at the shrubs around your property and see how they have handled the season. Proper watering, healthy soil, appropriate mulching, and early identification of insect or disease problems can all make a difference, but the right approach depends on what is actually causing the decline.
If your shrubs are thinning, browning, dropping leaves, or simply do not look as healthy as they should, Aspen Tree and Turf can help identify the problem and recommend the appropriate next steps.
If something doesn’t look right in your landscape, call Aspen Tree and Turf at (732) 928-5747. We can help identify the cause and recommend the right next steps.