How many square does a 50 lb bag of grass seed cover? (Calculator + 5 Other Things)


This article informs you regarding how many square feet a 50 lb bag of grass seed will cover, how you easily can calculate the grass seed coverage, and a lot of other relevant information you will need when you want to get a beautiful lawn in your garden.

Answer: There are a variety of correct answers since it depends on what type of grass seed you are using and are if you are in a position to start a new lawn or if you sowing on an existing lawn.

However, if you overseeding your existing lawn with Bermuda grass – one pound of Bermuda grass seed should be enough to cover around 1.000 square feet of lawn. If we then start from here and you use a calculator you will therefore end up with the following results = 50 x 1000 square feet = 50.000 square feet of lawn for a 50 lb bag of Bermuda grass seeds.

We all want to have a beautiful lawn and healthy grass in our garden. However, different varieties of grass will grow differently according to region and climate. It’s important to know which variety of grass, that grow best on your lawn.

Once you know what kind of grass grows best on your lawn, then you are ready to buy the right amount of seeds for your lawn.

How do I calculate grass seed coverage?

First of all, you need to determine the area that needs to be seeded. How big is your garden? Which is essential for you to know before you can make any calculations.

You can start determining how much seed you’ll need for your lawn by multiplying the length by its width. It’s a great idea to deduct any non-lawn areas that overlap the total lawn such as the deck, pool, and any walkways. This will give you an idea of the total square footage of your lawn.

Find the grass sort you want to plant. A great choice could be the Bermuda variety as mentioned above or a completely different species.

Use a calculator like this found here from and do the math to determine the final number of grass seeds you need to cover your lawn.

Can you just throw down grass seed?


Answer: Yes – if you just throw down grass seed on the ground some of the seeds will start growing.

However, the time for the seeds to start growing can depend on the climate and the conditions.

It’s a process to get a healthy lawn and apart from just throwing your grass seeds on the ground, you need to take care of your lawn on an ongoing basis. Throwing your grass seeds all over the lawn sounds like a great idea to most people because it will save you time and money.

Since it’s easy to just throw your grass seeds on your lawn and can save you time and money, there are a few negative effects of using this method.

You may see a negative impact on the germination of the thrown grass seeds. You can’t expect to get the highest quality of grass when the seeds are thrown and it may well be reduced over time.

The reason for the grass not being of the highest quality is simply because the grass is not rooted in the right way. You have to expect that it will stop growing and die as well over time. Because the grass will die you will see bare patches appearing on your lawn.

To sum up, without the maintenance of your lawn going forward and a great preparation before you throw grass seeds at your lawn, you have to know, that the grass may not be going to grow properly. In another way – it’s a waste of your time and money to plant your grass seeds using this method.

Can you put too much grass seed down?

It’s well known that all plants, including grass plants, need adequate soil space for the roots to develop and spread in a natural way.

However, if you sadly put too much grass seed down, you will, unfortunately, encourage competition that might cause your grass seedlings, to because there will be excessive competition for water, sunlight, and soil nutrients.

Whether you’re starting from scratch or overseeding your existing lawn, it’s really important to follow the recommendations on the back of the grass seed bag to see the best results.

It’s important to select the right grass seed to receive a successful seeding. I can definitely recommend Scotts Turf Builder Grass Seed because it’s designed for full sun and dense shade and the grass has a bladed texture and medium to high drought resistance.

I will also recommend you to invest in a lawn spreader when you have to sow your grass. When using a lawn spreader you will get a uniform distribution of seed over the lawn area and also give you the maximum coverage as described often on the grass seed bag.

Once your grass seed has been planted on your lawn, you need to start watering the lawn to keep the soil moist over the next several weeks. It’s a great idea to start daily watering your lawn until the grass seed germinates.

Should I put topsoil over grass seed?

Answer: No. When you place topsoil over newly planted grass seeds they will get suffocated. Sometimes they will not even get started to grow – it’s, therefore, a bad idea to put topsoil over grass seeds.

As we approach spring many of us start to think about our lawn and maintenance plans. Most people usually think of their lawn as the first and the one they would rather concentrate on because the lawn is a big part of any house with a garden.

Having topsoil spread over your newly planted seeds may seem like a great idea, but it will most often have the opposite effect.

While it sounds like the topsoil would protect the seed and help the seeds germinate unfortunately grass seeds when sprouted are not easily able to push through the topsoil. Topsoil will suffocate the newly planted seed and therefore they will never actually have a chance to even get started to spire.

However, you can prepare the soil for planting grass in a proper way with a seeding technique and aeration, which allow the best protection and prevent not losing any seedlings.

How much sun and shade do my lawn need?

Answer: Grass seeds need moisture to germinate and it’s therefore recommended to try to keep the grass seeds in a shaded area compare to a sunny area. It’s more difficult to keep a sunny area moist than an area with shade.

It’s a great idea to plant your grass seeds in August or September since there will often be both sun and shade in your garden.

The temperature needs to be 10 degrees or more to get the grass seeds to grow. You can often expect rain as well in August and September which make your lawn moist and perfect for your grass seeds to grow.

Every area with grass needs water and if you have planted a new lawn in your garden, you have to expect that the seeds need water multiple times a day until the grass is established. Usually, it will take around 4-5 weeks if it’s a new lawn but it depends on the variety of the grass seeds you have chosen.

You know the grass is established when the grass is 2-3 inches high and going forward you can keep watering the water regularly and it’s not necessarily doing it daily.

Final thoughts


When seeds sprout they have some unusual habits, they are a bit different than other seedlings that you may be used to working with. Many types of seeds are oblong in shape and small.

Many other types of seeds, grass seeds, etc. are not able to push their way through topsoil or other earthy materials. They are very tiny in the germination stage and actually really sensitive.

Even though they can not be covered with topsoil they can’t be let exposed either. Grass seed loves soil with moisture at a medium temperature. If that can be achieved the seed will germinate and provide a wonderful lush lawn of grass. A great thing about grass seed is that it grows very rapidly.

The negative part about it is that the grass must be cut weekly during the summer period.

Planting grass can also be tricky with getting the best location depth-wise when it is planted. Grass seed is best planted at a depth of about ⅛ inch to ¼ inch below the surface.

Dispersing the seeds with a spreader or by hand allows the seeds to make contact with the soil in the garden, but always make sure that the lawn has been treated and aerated before seeds are placed on the lawn.

The aeration allows the soil to be broken up just enough that it gets below the surface but does not get covered with a thick layer of earthy materials. Ideally, aeration will create a shallow planting place for each one of the seedlings to germinate and thrive in.

The rule of grass seed and making sure that it has not been overcovered is that you should be able to see about 10 % of the seed when it is in the earthy material.

Seeing too much or too little of the seeds can indicate that the soil is not aerated enough or that it has been aerated too deeply. It typically takes about three weeks for grass seeds to sprout.

Along with planting grass, there are additional tasks that can be completed to protect and help the grass grow well.

Many think that putting topsoil over the seeds would protect them, but in fact, that will actually suffocate the seedlings rather than do any good.

We suggest straw, hay, or any other type of mulching material. Spreading a thin layer of about ¼ inch of this material will be able to protect the seeds from the common wind and even pests.

It also helps to provide the soil with moisture retention. When moisture is maintained it allows the germination process to take place in a timely manner and allows the seedling to thrive.

Adding straw, hay, and other mulching materials not only protects the seedlings and keeps the moisture after it degrades it adds nutrients to the soil that provides for some great establishment for the grass seeds. Water and adding a protective layer really do help it become the beautiful lawn that you are looking for.