How do I make my grass grow thicker? (2024)

Feel like your grass grows quickly, but never really looks that great because it’s too sparse?

You might notice your neighbour’s lawn always looks thick and lush, but yours, even though it’s the same variety, just doesn’t quite look the same.

There are many factors that could be contributing to your lawn’s poor performance. The main culprits are shade, compaction or a pest related issue. Look as these potential issues first to rule these out as the problem. If you don’t, the underlying problem will continue to cause you headaches and you will never get the result you are looking for.

If you have ruled out shade, compaction and pests, it could simply boil down to a difference in mowing techniques. A few tweaks to the way you mow your lawn and the frequency can make all the difference.

How do I make my grass grow thicker?

Let’s start with mowing:

Regular mowing – Regular mowing promotes lateral growth. If you don’t let your lawn get too long, more sun can penetrate to encourage growth.

Mowing in different directions – If you mow in the same direction all the time, the grass tends to stay pointed in that direction. Going over your lawn in different directions will help the grass to grow straight up, leaving more room for blades to grow next to it.

Mowing short – If you mow short (not too short), your grass will learn to grow thicker with more lateral growth. If you leave it too long, once again sun can’t penetrate as easily, and you end up with a patchy lawn, particularly when you end up cutting off more than a third of the leaf to bring the level back down.

In addition to mowing, it is important not to forget the overall health of your grass. The healthier your lawn is, the more likely it is to grow thicker and spread.

Key principles that are important to lawn health:

Fertilise – Most lawn fertilisers contain a balance of nutrients ideal for grass health. One of these nutrients is potassium. Potassium functions within the cell of the grass and provides strength to the whole plant. It helps with the internal processes, including photosynthesis, respiration and protein production creating thicker cell walls.

Water – When your lawn runs out of water and ability to draw moisture from the soil, it reaches its permanent wilting point (PWP). This is where your lawn will start to suffer, and wilt and growth will slow to an almost complete stop.

Dethatching – Excessive thatch in the turf profile makes it difficult for your lawn to take in nutrients, creates moisture loss and causes a barrier that makes it difficult for the living matter to thicken and spread.

Eliminating all weeds and invading turf species – It goes without saying really, but if there’s space in your lawn for more grass to grow, it’s likely there is space for weeds to appear as well. Hand weed what you can, spray with herbicides when required and allow your grass to spread into these areas instead.

Limit wear and unnecessary stress – Less stress will also ensure grass is in top health which will also improve density.

Plant Growth Regulators (PGR’s) – You might have heard of a treatment that will reduce the frequency you need to mow your lawn. These chemicals were designed primarily to slow vertical plant growth to reduce clippings and mowing requirements in commercial situations like on sports fields or golf courses. Energy is then redirected to the roots and towards lateral growth. The end result is a grass that is more tightly knit, thicker, and more capable of handling stress.

How do I make my grass grow thicker? (1)

How do I make my grass grow thicker? (2024)

FAQs

How do I make my grass grow thicker? ›

Aerate and Overseed Your Lawn When Needed

Will grass thicken on its own? ›

We know what you're thinking: Will grass thicken on its own? That would be great! But, no. So, you could spend your hard-earned weekends fertilizing, aerating, seeding, weeding.

What fertilizer makes grass thicker? ›

The best fertilizer to thicken grass must contain Phosphorus. It's an essential nutrient that helps to stimulate root growth and enhance plant vigor and soil tests have revealed it is greatly needed in our region.

Does grass grow thicker the more you cut it? ›

Generally, yes. Mowing frequently is the key to a healthy lawn because each cut encourages the grass to grow thicker, creating a luscious, dense lawn. You can also block out weeds and make your turf more resilient, which is essential for a long-term, strong lawn.

Does putting grass clippings on bare spots help grass grow? ›

The short answer is yes, according to lawn care experts. Leaving grass clippings on the lawn can actually be healthy for the grass, as it helps build a strong and nutrient-rich soil. This practice is known as “grasscycling,” and it has become increasingly popular in recent years.

Can I just throw grass seed down on an existing lawn? ›

Overseeding is spreading grass seed over an existing lawn. Done right, it's a straightforward process that gets results. As grasses mature, thinning is normal—especially if you enjoy your lawn and use it often. Overseeding keeps your lawn competitive and steeped in youth and vigor, without starting over from scratch.

Why is my lawn so thin? ›

Lack of Fertilizer

There's no question about it, grass needs regular fertilizing in order to grow thick, fill in, and stay healthy. And if your lawn needs a little more food than you're currently giving it, areas of thin grass can spread. Don't worry—it's never too late to get back into a good lawn fertilizing routine.

What is the best seed for thickening grass? ›

In general, Kentucky Bluegrass, Tall Fescue, and Bermudagrass are excellent choices for most lawns. Kentucky Bluegrass has that traditional lawn aesthetic, while Tall Fescue offers excellent durability, and Bermudagrass provides quick coverage and drought resistance.

How to help your grass grow? ›

Lawns grow vigorously when enough nutrients are available, especially nitrogen. For low-maintenance lawns, apply fertilizer once in the fall to promote robust growth the following spring. Apply fertilizer in late spring and summer too for higher-maintenance lawns. Mulch-mowing provides some nitrogen for your lawn.

Is Epsom salt good for lawns? ›

Applying Epsom Salt to your lawn is a safe, natural solution to help with seed germination, nutrient absorption, growth, and the general health of lawns and plants in your yard. It contains magnesium, which helps with the above stated.

What chemical makes grass greener? ›

The three key ingredients in fertilizer are nitrogen, potassium, and phosphorus, each with a distinct purpose. Nitrogen makes your lawn lush and green, while potassium helps make your grass durable and resilient during stressful conditions. Phosphorus fosters strong root development over time.

What fertilizer has the most iron? ›

About This Product. Richlawn created Iron-Rich as an organic based lawn and garden treatment with 10% iron content available in both chelated and elemental forms. That is the highest iron supplemented product on the market.

How long does it take for new grass to get thick? ›

Whether you're repairing bare spots, overseeding an existing lawn or starting from scratch, you can generally expect grass seedlings to emerge within seven to 21 days when grown under proper conditions. It may take another three to four weeks of growth before grass is long enough to mow.

How do you fluff up grass? ›

Use a broom – the old school method

It may seem quite obvious, but when grass is looking a little despondent, you can perk up your grass by sweeping over it to raise the strands.

Will my grass get thicker if I let it go to seed? ›

In reality, this does not work. When grass is allowed to go to seed, it creates a thinner stand of grass that is less healthy and more prone to weeds. Turfgrasses in the lawn get thicker primarily by spreading using above or below-ground runners or stolons.

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