9 tips to revive dead grass and make your lawn green again
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Does your once green, lush lawn now look brown and lifeless? Apart from the heat and a lack of water that can cause a lawn to die, increased activity during warmer months can take its toll. Whether from playing games or using the lawn as a pathway, the extra wear and tear will cause your lawn to turn yellow and die back.
However, problems with dying lawns aren’t just restricted to the summer months. Apart from reviving your lawn in the fall, you can also bring it back to life in the spring, in readiness for summer.
Knowing how to overseed your lawn and how to do it the right way will help, but there are plenty of other ways to bring your lawn back to life. To help restore your lawn to its green glory, we’ve listed 9 tips to revive dead grass. From fertilizing advice to soil aeration, follow these tips, and your lawn will look thick and vibrant to enjoy once again.
How to revive a dried lawn
Before you tackle your dried lawn, you’ll need to know whether your grass is dead or dormant. Simply tug at a piece of grass, and if it easily comes away at a pull, that means it’s dead. Other signs to lookout for include distinct patterns or areas or circles of brown grass. On the other hand, dormant grass is essentially still alive, and can spring back to life after about 10 to 14 days by following the steps below.
1. Dethatch your lawn
The first step is to dethatch the lawn. This involves raking it over to allow air or moisture to penetrate the grass better.
Thatch is a layer of decomposing plant materials, such as dead leaves, that builds up on the surface of the soil. If it gets thicker than half-an-inch, this can prevent your lawn from getting enough air, water and nutrients. It also prevents healthy root development and can make your grass prone to insect and disease issues.
2. Aerate the soil
Johnsons Lawn Seed explains that when the lawn is regularly used over the summer months the soil can become compacted, which can lead to drainage, weed and moss problems. And when we have a particular wet summer, weeds and moss thrive.
When the soil is too dense, it prevents air and moisture from penetrating the surface, which can eventually kill the grass. Aerating your lawn helps solve this — it punctures the ground, allowing air, water and nutrients reach the roots.
Look at our instructions on how to aerate a lawn for step-by-step guidance. This way you'll help your lawn receive all the nutrients it needs to thrive.
3. Kill weeds and dandelions
Weeds can spring up quickly in open spaces, feeding on any moisture available in the ground. When you have weeds growing alongside grass, this creates competition, meaning there is less water and space for grass to grow.
Remove weeds by hand-pulling them out by the root or by using a tool like this Walensee Weed Puller ($29, Amazon). Similarly, knowing how to get rid of dandelions also helps retain more moisture and nutrients for the grass.
4. Fertilize it
Lawns need a consistent supply of nitrogen, phosphorus, and potassium to help develop and stay healthy. Depending on your soil type (clay or sandy), there are suitable fertilisers in granular or liquid forms which can improve conditions.
In addition, you can naturally fertilize using compost or grass clippings, both of which double up as a great defence against weeds. This is one of the 9 ways you can reuse grass clippings after mowing.
To find out what your soil is lacking, use a soil test kit, such as MySoil Soil Test Kit ($29, Amazon).
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5. Plant new grass seeds or lay sod
If your dried lawn is receding or patchy, you’ll need to know how to plant grass seed and get a greener yard. It’s always best to choose a high-quality grass seed and spread it evenly over your prepared lawn. Once the seed is completely laid down, cover it with a thin layer of soil.
Johnsons Lawn Seed recommend overseeding patches when the ground is warn and there is frequent rain. The process will thicken your lawn and crowd out unsightly weeds, as well as improve its health and appearance.
Alternatively, if you don't want to wait too long for your grass to grow, learn how to lay sod for an instant upgrade. Sod is grass that is already growing and comes in rolls or squares that you lay over your soil. If you are only filling in dead patches, you can simply use sod to plug wherever you need new grass.
6. Change grass type
If your lawn has seen similar damage in previous years, and it needs immense repairs after each summer, it might be worth switching to a more appropriate grass type. Different grass types have different qualities, as well as being better suited to alternate regions. For instance, some grass types thrive in the shade, while others are disease resistant. Then there’s grass types which are drought tolerant, preferring full sun exposure and higher temperatures.
These are the types you may want to consider planting for less maintenance in the future, particularly if you’re prone to hot summers. It includes the likes of Bermuda grass, Zoysia grass and Buffalo grass, which are all warm-season types suited for the southern region. Tall fescue is a drought tolerant option for cool-season types of grass. Be sure to check the type of grass you’re considering is appropriate for your location via your local garden center. Here’s our guide on 7 of the best grass types to grow for more info.
Alternatively you can plant 7 fast-growing trees for shade and privacy, to create more shade in the future for your lawn.
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7. Water frequently
Dried lawns are a sure sign of dehydration, so you’ll need to soak the lawn thoroughly. Bear in mind that you need to water at the right times. Experts advise the best time to water your lawn is early morning or late evening when it’s cooler. Watering during hot periods of the day will evaporate most of the moisture, so it won’t be absorbed into the soil.
It’s best to use a sprinkler system to ensure the lawn gets a thorough soak. There are many affordable sprinkler systems available, like this Goldflower Garden Sprinkler ($8, Amazon).
Top tip
Although your lawn will need a good soak, the Lawn Association warns against over-watering dry patches, as they're likely to rebound when the rain returns.
8. Top dress the lawn
Topdressing involves applying a layer of compost or other nutrient-rich soil over the surface of your lawn. This will give the dried lawn a nutrient boost and improve the structure of the soil at root level, again helping absorbency.
With the help of aeration and a better water flow, the lawn can absorb the nutrients naturally through decomposition, helping the grass grow thicker. In addition, you can top dress the lawn with sands or other mixtures, depending on your soil type.
9. Cut back on mowing
We mow frequently through the summer and naturally cut back in the fall. But, if your lawn appears dry and yellowed, you’ll want to keep your mower stowed away. Vulnerable grass can be easily damaged or even killed by a lawn mower, particularly when it’s cut overly short — here’s 9 signs that you’re cutting your grass too short for guidance. For this reason the Lawn Association suggests raising the cutting height of your mower and keeping the blade sharp as a dull blade can cause significant damage, especially if the grass is stressed during period of slow growth. Johnsons Lawn Seed recommend mowing your lawn no more than once every two weeks unless the weather is particularly mild.
Taller grass naturally has a better chance of survival. The longer leaves provide shade for the soil surface, which helps it retain moisture better. Plus, the leaves have more length to better photosynthesise. In short, there’s still a chance it will bounce back from the hot summer, but by mowing it, you will make the conditions more challenging. If you must cut the grass, make sure to keep your lawn mower on the highest setting to lessen the damage.
Other tips to keep your lawn green
Don’t cut your grass too short. Experts advise cutting grass down to 2.5 to 3 inches, which is a healthy height
Experts also suggest mowing your lawn at least once a week in summer and once every two weeks for the remaining seasons
Make sure your lawn has good drainage to avoid it getting waterlogged
Grass seed will need to be watered regularly to start with — 1 to 2 times per day, cutting this back once it reaches 1 to 2 inches in height
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