How do I get rid of bald spots in my St Augustine grass
James Bradley
Updated on April 24, 2026
The easiest way to revive St. Augustine grass is to water your lawn properly, get rid of pests such as grub worms, and improve soil quality. Enough water helps grass survive the drought that’s common during summer, while grub control prevents root damage that usually kills grass quickly.
How do you fix bald spots in St. Augustine grass?
If your grass is a St. Augustine grass lawn, you’ll want to sod or plug your bare spots. Purchase a few pieces of sod or enough plugs to cover your bare spots from your local garden center. Then prepare the area by applying a generous layer of Scotts® Turf Builder® Lawn Soil.
How do I fix bald spots in my lawn?
- Rake the Area. Rake and remove any debris or dead grass from the area, using a garden rake. …
- Loosen the Soil. Break up the soil with a hard-toothed lawn rake or a garden cultivator. …
- Amend the Soil. …
- Spread the Seeds. …
- Rake the Seeds. …
- Begin Watering. …
- Mow When Ready.
What causes bald spots in St. Augustine grass?
Over or under watering can also cause bare patches. Grass should be watered enough to completely soak the grass, but not enough to leave puddles of water for any length of time. Grass can also become choked by weeds or dead grass layers from winter or previous grass plantings.How do you fix St Augustine bare spots?
However, for bare spots, rake over the dead grass to loosen and remove it, and then go ahead to fill in the bare spots. You can do this by planting new plugs, feeding and watering for proper growth.
Does sand help St Augustine grass grow?
It’s also best to use a sandy fill (like river sand or pump sand). Avoid heavy silty or clay soils. Also do not use garden soils or topsoils that have been blended with high amounts of organic matter. Mow the lawn just before spreading the fill so the grass blades stand more upright.
How do I get my St Augustine grass to grow back?
Water St. Augustine grass with 1-1.5 inches of water every week to revive it quickly. Apply nitrogen fertilizer and grub control, then mow the lawn high at 3 inches to make the grass green again. If the grass is dead, install new sod to revive and bring the lawn back to life.
Why does my St Augustine grass have brown spots on the blades?
Augustinegrass is a disease caused by a fungus that is common during extended periods of hot, humid weather. … The fungus primarily infects leaf blades but may also infest stems and spikes. The infection produces gray or dirty-yellow spots with brown or purple borders.What is the best fertilizer for St Augustine grass?
- Milorganite Organic Nitrogen Fertilizer. Famously used by professionals. …
- Scotts Turf Builder Lawn Food. …
- Lesco St. …
- Dr Earth Super Natural Organic Lawn Fertilizer. …
- Scotts EZ Patch Lawn Repair. …
- Simple Lawn Solutions Natural Liquid Fertilizer.
Augustine plugs about 7 – 14 days to begin spreading. However, the amount of time it will take to fill the bare spots will depend on the spacing of your plugs. Below we have a guide on high, typical, and low-density plug planting.
Article first time published onWhy is my St. Augustine patchy?
The main reasons are pests like grubs and chinch bugs, turf diseases like Brown patch and gray leaf spot, poor soil quality, and excessive fertilizer applications.
What do you overseed St. Augustine with?
It is recommended to never overseed St. Augustine lawns due to the fact it can be hard to get good seed contact without having to scalp and damage the existing yard. The main choice for which cool-season turf to overseed with is generally between annual ryegrass and perennial ryegrass.
How do I grow grass with dead spots?
- Clear out any dead, matted turf and other debris. The grass will germinate and root best when it comes into direct contact with soil.
- Loosen the soil. …
- Scatter grass seed over the loosened soil. …
- Fertilize. …
- Mulch and water.
Will fertilizer help bare spots?
In most areas, the best solution is to replant the bare spot with new grass. There are several options: You can apply grass seed and fertilizer separately. Spread straw as a mulch after planting the grass seed to help keep it moist and safe from birds.
Will grass fill in bare spots on it's own?
All you need is patience as you prevent additional damage to that area, and if you have these types of grass your bare spots will fill in on their own over time. Other types of grass (clump-forming grasses) won’t spread and repair bare spots.
What is the best fungicide for brown patch?
Headway® fungicide is an excellent choice for preventive control of brown patch. Headway contains the active ingredients azoxystrobin and propiconazole and delivers broad-spectrum control of brown patch, as well as all major turf diseases.
How do you thicken St Augustine grass?
- Preparation. It is best to purchase St. …
- Irrigation. This is especially important after installing sod for the first time. …
- Mowing. These tips are quite simple: leave no less than two thirds of its length intact, mow with sharp blades, and don’t bag the trimmings. …
- Fertilizing. …
- Weeding.
How can I make St Augustine spread faster?
Augustine grass spread quickly and grow thicker, plant sods in early summer in well-draining soil with a pH range of 5.0 – 8.5. Apply a phosphorus fertilizer for faster root development and water lightly twice a day for the first 14 days. Mow your new sod high to allow the stolons to spread thicken easily.
Will Dead St Augustine grass come back?
Dead grass isn’t coming back, so you’ll need to take steps to regrow your lawn. You can replace the grass by seeding or sodding — or installing a new type of landscaping material such as mulch, rocks or groundcover. … You’ll need to first remove the dead grass and prep the soil before laying the new sod.
Can you use Scotts Turf Builder on St Augustine?
With a special formula designed for Southern lawns that works to protect your grass against heat and drought, Scotts Turf Builder is great for all grass types, including St. Augustine grass. This fertilizer is an easily applied all-in-one treatment that encourages your lawn to absorb water and nutrients naturally.
What soil is best for St Augustine grass?
Augustine grass grows and thrives best in well-drained, sandy soil and it does not do very well or spread quickly in waterlogged, compacted clay soils. This is because this soil usually does not have a sufficient oxygen supply, which can prevent the soil from supporting the growth of plants.
What is the best height to cut St Augustine grass?
Mowing: The ideal mowing height for St. Augustinegrass can range from 2½ to 4 inches depending on the specific site and management regime and is best determined by the growing conditions. Lawns in shady areas perform better when mowed at 3 to 4 inches high.
Does lime help St. Augustine grass?
Lime for Lawns is important and there is a proper way to add lime to your St. Augustine Grass. … When a soil is too acidic for proper plant growth, lime may be applied to reduce the acidity. The proper pH level also helps with the uptake of the fertilizer applied to the lawn.
Are coffee grounds good for St. Augustine grass?
Coffee grounds seem to add to the soil helping to create sort of a compost. We had a spot in our yard that had coffee grounds added to it almost everyday for many years. Around it and on top of the pile it grew the best St. Augustine grass you ever saw and had many earthworms in it as well.
How often should St. Augustine grass be watered?
In fact, you need to water St. Augustine grass in sandy soils approximately 1/2 inch of water twice a week to keep the ground moist enough for healthy grass growth. On the other hand, clay soils require observation; water the grass until you see some water runoff and then immediately stop.
How do I treat brown spots in my lawn?
- Water on schedule. …
- Mow high. …
- Reduce heavy thatch. …
- Fertilize properly. …
- Ensure proper drainage. …
- Apply a fungicide. …
- Maintain a healthy lawn.
How do you grow St Augustine grass in the shade?
Whichever grass you choose, a tip for maintaining shade-tolerant varieties is to mow a bit higher than the recommended mowing height. The extra height will provide a greater surface area for the grass to photosynthesize the reduced sunlight it receives in shady conditions.
How long does it take for St Augustine sod to root?
Keep Watering Water daily or as needed until the plugs are firmly rooted and starting to spread. This will normally take about 7-14 days for the roots to establish.
Do St Augustine grass plugs work?
St. Augustine grass plugs are a great way to fill in bare and dead spots. With a little care and patience, plugs will easily renovate your yard.
What does fungus on St Augustine grass look like?
Small brown leaf spots appear as the initial signs of fungal disease on St. Augustine grass leaf blades. … The borders are usually purplish or brown, a major sign of gray leaf spot which at some point may manifest as patches of yellowing grass in your lawn.
When should I reseed St. Augustine?
After winter, especially in regions with harsher weather, inspect your lawn for patches that may need reseeding or resodding. St. Augustine will spread and fix small patches, but it may be faster to reseed large patches. However, wait to reseed until after the chance of frost has passed.