Summer in North and South Carolina brings long sunny days, backyard barbecues and some of the toughest conditions your lawn will face all year. High heat, humidity, drought and increased pest activity can all put stress on turfgrass.
Whether you grow bermuda, zoysia, centipede, St. Augustine or tall fescue, maintaining a healthy lawn during the hottest months requires a slightly different approach than spring or fall care.
This Summer Lawn Survival Guide for NC & SC outlines simple strategies homeowners can follow to help their lawns stay green and healthy through the heat.
Water Deeply, Not Frequently
One of the most important summer lawn care habits is proper watering.
During the hot months, most lawns require about 1 to 1.5 inches of water per week, either from rainfall or irrigation. Watering deeply encourages roots to grow deeper into the soil, which helps grass survive drought and heat.
Best watering practices for Carolina lawns
- Water early in the morning before the sun rises
- Irrigate 2–3 times per week rather than daily
- Adjust watering if rainfall is expected
- Avoid overwatering, which can promote disease
Shallow watering can lead to weak roots and grass that struggles during dry conditions. Deep soaking helps lawns remain healthy during heat waves.
Mow High During Summer Heat
When temperatures rise, mowing height becomes especially important.
Keeping your grass slightly taller in summer helps shade the soil and retain moisture. Taller grass also develops deeper root systems, allowing it to access water further down in the soil.
Benefits of mowing higher in summer
- Improves drought tolerance
- Reduces weed growth
- Protects soil from direct sunlight
- Helps lawns recover from heat stress
Avoid removing more than one-third of the blade at a time, which can shock grass during hot weather.
Fertilize Based on Your Grass Type
Summer fertilizer programs vary depending on whether you have warm-season or cool-season grass.
Warm-season grasses thrive in the heat and benefit from summer feeding, while cool-season grasses like fescue require a lighter approach.
Warm-Season Grass Fertilizer Programs
Warm-season lawns common in the Carolinas include:
- Bermuda
- Zoysia
- St. Augustine
- Centipede
These grasses actively grow during summer and may receive multiple fertilizer applications to maintain healthy growth.
General summer timing
Late June – Early July
Apply a balanced fertilizer such as 20-0-25 to support growth during peak summer.
Early August
Use fertilizers containing iron (such as 6-1-11 with iron) to enhance green color without pushing excessive growth during heat stress.
Bermuda Grass Example
Bermuda lawns may follow a slightly more aggressive schedule:
- Early to mid-June: 20-0-25 fertilizer
- Early July: 25-0-5 slow-release nitrogen
- Mid-August: Another 20-0-25 application
This schedule keeps bermuda lawns thick and green through the hottest part of the year.
Cool-Season Grass: Fescue
Tall fescue behaves differently in summer because it is a cool-season grass.
Instead of multiple fertilizer applications, fescue typically receives a single summer feeding using a product such as 6-1-11 with iron between late June and early July. This helps maintain color without stimulating excessive growth during heat stress.
Heavy nitrogen fertilization in summer can damage fescue lawns and increase disease risk.
Learn more here.
Control Summer Pests
Summer is also peak season for lawn insects.
Common Carolina lawn pests include:
Signs of pest activity may include:
- Brown or thinning patches
- Wilting grass
- Bare spots appearing suddenly
Treating insects early is the best way to prevent widespread lawn damage. Always follow insect control label instructions carefully.
Reduce Heat Stress on Your Lawn
Even healthy lawns can struggle during extended heat waves.
A few simple adjustments can help reduce summer stress.
Protect your lawn by:
- Limiting foot traffic during extreme heat
- Keeping mowing blades sharp
- Maintaining proper watering schedules
- Applying organic mulch around landscape beds to conserve soil moisture
These steps help lawns retain moisture and recover faster from hot weather. Learn more here.
Test Your Soil for Better Results
Late summer is also a great time to collect soil samples, especially for fescue lawns that will be overseeded in fall.
Testing soil once per year helps determine:
- Soil pH levels
- Nutrient deficiencies
- Fertilizer needs for the upcoming season
For the most accurate results, collect soil samples when the ground is dry and avoid testing immediately after fertilization. Read more about testing your soil here.
A Healthy Lawn All Summer Long
Summer lawn care in North and South Carolina comes down to a few key practices: watering deeply, mowing high, fertilizing correctly and watching for pests and disease.
With a little attention and seasonal maintenance, homeowners can keep their lawns looking healthy even through the hottest Carolina summer days.
The reward is a lawn that stays greener, recovers faster from stress and remains ready for fall growth and renovation.