How to Help Your Trees Survive Triple-Digit Temperatures
If you’ve spent even one summer in Central Texas, you know the heat can be relentless. Weeks of temperatures above 100°F, scorching sun, drying winds, and little rainfall create some of the toughest growing conditions in the country.
At LAWNS Tree Farm, we’ve been growing and planting trees in Central Texas for over 40 years. We’ve seen droughts come and go, and one thing remains true: most trees don’t die from the heat—they die from dehydration.
The good news is that with the right watering techniques and a little preventative care, your trees can not only survive the summer but continue to thrive for years to come.
Water Deeply—Not Daily
One of the biggest mistakes homeowners make is watering a little bit every day.
Frequent, shallow watering only wets the top few inches of soil, encouraging roots to stay near the surface where temperatures are hottest.
Instead, trees need deep, slow watering that soaks the entire root ball and encourages roots to grow deeper into cooler soil.
A good soaking every few days is far more beneficial than a quick sprinkle every afternoon.
New Trees Need Extra Attention
The first year after planting is the most critical period in a tree’s life.
Newly planted trees haven’t had time to extend their roots into surrounding soil, making them much more dependent on consistent watering.
During periods of extreme heat:
Water deeply every 3–5 days
Saturate the entire root ball
Check soil moisture before watering again
Never allow the root ball to dry completely
Consistency is the key to successful establishment.
Mature Trees Need Water Too
Many homeowners assume established trees don’t need supplemental watering.
While mature trees are much more resilient, prolonged drought combined with extreme heat can still stress even decades-old shade trees.
If rainfall has been scarce, provide a slow, deep watering every week or two during extended heat waves.
Your mature trees have invested years into your landscape. Giving them a drink during drought helps protect that investment.
Mulch Is One of the Best Things You Can Do
Mulch acts like insulation for your tree’s roots.
A 2–4 inch layer of hardwood mulch helps:
*Keep soil cooler
*Reduce moisture loss
*Suppress weeds
*Improve soil as it decomposes
*Protect roots from temperature swings
*Keep mulch a few inches away from the trunk.
*Avoid creating “mulch volcanoes,” which can trap moisture against the bark and encourage rot.
Watch for Signs of Heat Stress
Trees often show warning signs before permanent damage occurs.
Look for:
* Wilting leaves
*Browning leaf edges
*Premature leaf drop
*Curling foliage
*Yellowing leaves
*Sparse canopy growth
These symptoms don’t always mean a tree is dying.
In many cases, they’re simply asking for water.
Early action can make all the difference.
Protect Young Tree Trunks
The intense Texas sun can actually damage the bark of young trees.
Thin-barked species are especially susceptible to sun-scald.
Using tree wrap or trunk guards on young trees can help reduce damage until the canopy provides more natural shade.
Skip Heavy Pruning During Heat Waves
Summer is not the time for major pruning.
As a result, leaves act as natural air conditioners by shading branches and cooling the tree through transpiration.
Removing too much foliage during extreme heat exposes limbs to additional sunlight and increases stress.
If possible, wait until cooler weather for significant pruning.
Remember: Rain Doesn’t Always Count
A brief summer shower may cool things off, but it often doesn’t provide enough water to soak the root system.
Furthermore, many storms produce only enough moisture to wet the surface.
After rainfall, check the soil several inches below the surface before assuming your tree has received enough water.
Every Tree Is Different
Water requirements vary depending on:
Tree species
Tree size
Age
Soil type
Drainage
Sun exposure
Wind conditions
Large shade trees, ornamental trees, and evergreen privacy screens all have different needs.
If you’re unsure how much water your tree requires, ask a professional before stress becomes permanent damage.
We’re Here to Help
At LAWNS Tree Farm, we don’t just sell trees—we grow them.
Because we raise trees specifically for Central Texas conditions, we understand what it takes to keep them healthy through our long, hot summers.
If you notice changes in your tree’s appearance or simply aren’t sure whether it’s receiving enough water, don’t wait.
Our team is always happy to help identify potential problems before they become expensive replacements.
Visit us at 400 Honeycomb Mesa, Leander, TX, browse our inventory at www.lawnstrees.com, or contact our knowledgeable staff with any questions.
With the right care today, your trees will continue providing shade, beauty, and value for decades to come.
When Quality Counts, You Can Count On Us.
