How Long Does Grass Seed Last? We Have Answers!

When it comes to growing grass in your front lawn or backyard, you might want nothing but a lovely, lush field by the end of it all.

You do your very best to make it as optimal as possible to grow as thick and luscious as it can, so that you can proudly show it off to everyone who comes to visit, whether friends, family, or loved ones.

You are passionate and dedicated to making your lawn as beautiful as possible, so you do your very best. That said, you might use grass seed to make your grass grow longer and faster.

The thing is, you might be wondering just how long does grass seed last, so that you know when it is still good to be used. You might not have any idea, but there is no need to be afraid; we are here to help!

Read on to learn more in this article about grass seed. We will be answering some of your frequently-asked questions concerning this topic, in hopes of preparing you for your next grass-growing project.

Soon enough, you will be producing some of the best, prettiest green grass out there. Without further ado, let’s get started!​


What Is Grass Seed?


Just as the name suggests, grass seed is essentially a type of seed which allows you to grow grass, whether in your backyard or your front lawn.

They are extremely tiny, with the appearance of a light-colored grain, and when planted can yield acres and acres of luscious, green grass, at least when taken cared of properly.

How Long Does Grass Seed Last?


Like with most items on this planet, grass seed also has an expiration date. However, its expiration date is not that short: on average, they can last 2 to 3 years, although some varieties can last up to 5 years. It will depend on just what type you get.

However, for the most optimal grass seed-planting results, it is best to use them when they are no more than a year old, since that this when they are still at their freshest.

The longer you wait to use them, the less potent they will be, which will force you to use more of them to get the same results as if you had planted them when they were still early on.

How Do You Store Grass Seed?


In order to keep your grass seed fresh and help prolong their growing effects, it comes down to proper storage.

The best thing to do is to store the grass seed in a mesh air vent bag, as means of keeping airflow going while also keeping away any potential insects or pests from getting into your valuable stash.

Aside from that, it is ideal to store them in a cool, dry place, preferably below 60 degrees Fahrenheit and at less than 60 percent humidity, hence the “60-60 rule.”

Usually, a cellar or a cooler part of the house will be the best place to keep your grass seed, as means of keeping them still fresh and good to grow.

How Do You Plant Grass Seed?

Now that you have an idea of how long grass seed lasts and how to store them, you are ready to go about planting your grass seed! It is actually not very hard to do: in just a few simple steps, you will be well underway to a beautiful, lush lawn. Here are the steps:


Prepare The Soil

First, you will need to choose an idea place to prepare the soil. Once you have found it, you can add the soil, along with turf fertilizers and other nutrients into it.

Ideally, the pH of the soil should be around 6.0 to 7.5, so slightly basic as to keep your grass growing and healthy.


Plant The Seed

Choose the finest grass seeds in your stash, i.e. usually the younger ones, and rake the soil into a smooth, flat surface before inserting the seeds into it. You can use a drop spreader to speed up the process, if you want.



Of course, water is essential for grass to grow: water thoroughly and frequently, but do not soak your grass seeds in it. As grass starts to sprout, cut down on watering, but continue to water liberally each time.


Mow And Maintain

As soon as the grass sprouts up and reaches three inches in height, trim off one inch and then let it grow normally. For the rest of the time, trim when you feel that it is starting to get too long.


Knowing how long grass seeds last is not hard to know, for they last a good amount of time. By researching a bit and becoming well-versed in all things grass, you will be able to plant the seeds successfully.

Happy gardening!

Shary Saunders

Shary Saunders is the founder and chief editor of Gardening and landscaping have been her passion for years. You can find Shary on Twitter at @SharySaunders. Read more about Shary here.

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