August Tree Care in Central Texas: Your Late Summer Guide for Dripping Springs, Fredericksburg & San Antonio
- ATX Trees
- Aug 6
- 5 min read
August is here, and the Texas heat is still going strong. Across Dripping Springs, Fredericksburg, and San Antonio, your trees have been working overtime to survive the summer. But here is the good news: fall is just around the corner. The care you provide your trees this month will determine how well they recover from summer stress and how prepared they are for the upcoming planting season.
At ATX Trees, we know that August tree care in Central Texas is about assessment, maintenance, and preparation. This guide covers everything you need to do to keep your trees healthy and set your landscape up for success.
Oak Wilt and Tree Care Education in Fredericksburg
Mark your calendars! The Texas A&M AgriLife Extension Service is hosting an Oak Wilt and Tree Care Program on August 21 in Fredericksburg. This event is designed for landowners, homeowners, arborists, and tree enthusiasts who want to learn the latest in oak wilt management and shade tree care. Oak wilt remains one of the most devastating tree diseases in Central Texas, and staying informed is your best defense.
If you are in Fredericksburg or the surrounding Hill Country, this is a fantastic opportunity to learn from the experts and protect your trees for years to come.
Your August Tree Care Checklist
1. Water Deeply and Consistently
Even in August, deep watering remains the most important aspect of August tree care in Central Texas. Shallow watering encourages weak surface roots, while deep watering promotes strong, drought-resistant root systems.
How to water correctly:
Water at the drip line (the edge of the canopy), not against the trunk.
Use a soaker hose, drip line, or slow trickle hose.
Water slowly for 2-4 hours per large tree.
Aim to saturate the soil to a depth of 12-18 inches.
Water in the early morning (5-10 AM) to minimize evaporation.
How much water do trees need?
Tree Size | Water Amount (per session) | Frequency (no rain) |
Newly planted (1-3 years) | 5-10 gallons | |
Small (under 15 feet) | 10-20 gallons | Every 7-10 days |
Medium (15-30 feet) | 20-40 gallons | Every 7-14 days |
Large (30+ feet) | 40-80 gallons | Every 10-14 days |
Watering during heat waves: During July and August, most trees need watering two to three times per week, depending on your soil type. Sandy soils drain faster and need more frequent watering, while clay soils hold moisture longer.
2. Refresh Mulch to Protect Roots
A 2-4 inch layer of organic mulch is your tree's best defense against late summer heat. It conserves moisture, regulates soil temperature, and suppresses weeds.
August mulch rules:
Maintain 3-4 inches of depth.
Spread to the drip line or beyond.
Keep mulch at least 6 inches away from the trunk.
Use shredded hardwood, native mulch, or pine bark.
3. Prune with Caution
August is a safe time for light pruning, especially for oaks. The oak wilt transmission season ended on June 30, and it is now safe to prune oaks through January.
August pruning guidelines:
Light corrective pruning can address water sprouts, crossing branches, and weight reduction on overextended limbs.
Remove dead or damaged branches to reduce disease and storm hazards.
Avoid major reduction pruning during peak heat since trees are already stressed.
For oaks: Seal all cuts with latex paint within minutes to prevent disease.
4. Monitor for Pests and Diseases
August is peak stress season for trees, making them more vulnerable to pests and diseases. Be on the lookout for:
Common August pests:
Spider mites: Fine webbing and stippled leaves. Hose off with water.
Aphids: Sticky honeydew and curled leaves. Use insecticidal soap.
Fall webworms: Silky webs on branch tips. Prune out or treat early.
Crape myrtle bark scale: A newer pest affecting crape myrtles.
Emerald Ash Borer Alert: The City of Austin has warned that the Emerald Ash Borer is inching closer to the Austin region. This invasive beetle kills ash trees and has been detected in additional Texas counties. If you have ash trees on your property, inspect them for D-shaped exit holes, canopy dieback, and woodpecker activity.
5. Avoid Fertilizing in Extreme Heat
Fertilizing during the hottest months can burn roots and stimulate vulnerable new growth. Hold off until fall when temperatures cool and trees can use the nutrients more effectively.
Regional August Tree Care Tips
Dripping Springs (Rocky Limestone Soil)
Challenge: Rocky soil drains quickly and cannot hold much moisture. Rocks absorb and radiate heat.
Tips for Dripping Springs:
Water more frequently (every 5-7 days) as rocky soil cannot hold moisture.
Use drip irrigation or soaker hoses (not sprinklers).
Mulch 4 inches deep to slow evaporation.
Create watering basins (soil berms) around each tree.
Fredericksburg (Thin Limestone Soil)
Challenge: Shallow soil limits root depth. Water sits in pockets, not evenly distributed.
Tips for Fredericksburg:
Use deep root watering tools (probes or long thin tubes).
Water at the base of each tree, not over bare rock.
Group trees together to create shared moisture zones.
Mulch heavily (4 inches) over the entire root zone.
San Antonio (Urban Clay Soil)
Challenge: Clay soil cracks when dry, exposing roots to heat. Pavement and buildings radiate extra heat.
Tips for San Antonio:
Water very slowly (clay absorbs at about 1 inch per hour).
Use drip irrigation or low-angle sprinklers to prevent runoff.
Mulch 4 inches thick, wider than the canopy if possible.
Fill cracks with compost or mulch to protect roots.
Start Planning for Fall Planting
While you are focused on August tree care in Central Texas, it is also the perfect time to start planning for fall planting. The best time to plant trees in Central Texas is October through November. Fall planting gives root systems time to establish before summer heat arrives.
Why plan now:
The best selection of trees sells out quickly in the fall.
You can reserve your preferred species now.
Secure your preferred installation dates.
Beat the fall rush.
Our most popular fall planting trees:
Lacey Oak – Our Central Texas Superstar. Drought-tolerant with stunning blue-green foliage.
Live Oak – The iconic Texas shade tree. A legacy that lasts for generations.
Monterrey Oak – Fast-growing shade with excellent adaptability.
Magnolia (DD Blanchard & Little Gem) – Evergreen privacy with year-round beauty.
Mexican Sycamore – Fast shade with striking white bark.
What Not to Do in August
Do not overwater – soggy soil causes root rot. Check soil moisture before watering.
Do not fertilize – new growth will scorch in summer heat.
Do not use weed killer near trees – chemicals stress roots.
Do not allow heavy traffic under trees – compacted soil holds less water.
Do not prune oaks without sealing cuts – always paint oak wounds immediately.
When to Call ATX Trees
If you need help with August tree care in Central Texas, we offer:
Tree health assessments to catch stress early.
Deep root watering for valuable or stressed trees.
Irrigation system installation (drip for trees).
Mulch delivery (bagged or bulk).
Pest identification and treatment.
Fall planting consultations to plan your October-November projects.
We serve Dripping Springs, Fredericksburg, San Antonio, and all surrounding areas.
Our Nurseries for August Supplies
Get everything you need for August tree care in Central Texas at either Dripping Springs location:
Soaker hoses and drip irrigation kits.
Organic mulch (by the bag or truckload).
Shade cloth and stakes.
Moisture meters and watering timers.
Expert advice for your specific trees.
24250 Ranch Road 12, Dripping Springs, TX 78620
2201 W Hwy 290, Dripping Springs, TX 78620
August hours: Open seven days a week, 8 AM to 6 PM.
Your Trees Are Ready for the Next Season
August tree care in Central Texas is about assessment, maintenance, and preparation. The work you do this month will help your trees recover from summer stress and get ready for the ideal fall planting season just ahead.
The trees in your Dripping Springs, Fredericksburg, or San Antonio yard have endured the worst of the Texas summer. With your help and care, they will recover and thrive.
Contact ATX Trees today for a late summer tree health check, to stock up on supplies, or to start planning your fall planting project. Let's get your landscape ready for the seasons ahead.
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