Thinking about using the old bag of grass seeds stored in your garage to spruce up your bare-looking lawn?
You may be wondering if the frozen grass seeds have expired or can still be used. Let me cut to the chase and relieve you of your worries. Most grass seeds don’t go bad when they are frozen.
However, it depends on the type of seeds, how they were stored, and how low the temperatures were.
How Long Do Grass Seeds Stay Good?
A vital thing to remember here is that, like any other natural product, grass seeds have a certain shelf life. As such, I found that it is best to use them within two to three years of their purchase. This is primarily because the chances of the seeds germinating typically lessen by 10 to 20% after two years or so.
However, certain varieties can last longer than two years, depending on how you store them.
Do Unopened Bags Of Grass Seed Last Longer?
There is no rule of thumb that states that an unopened bag of grass seeds will last longer than an opened one. In fact, several instances have been noted where opened bags have lasted longer simply because they were stored in a better way.
Certain species like Ryegrass can last up to five years after purchasing them. However, you have to store them in ideal conditions. Moreover, most seeds that grow in zones with a hardiness level of three to nine typically last for a long time.
What Is The Best Way To Store Grass Seeds?
Now comes the real question - what is the ideal way to store grass seeds to ensure that they last longer?
It is best to store them in a cool location where there is no moisture or humidity. The ideal temperature to store most grass seeds is 40 to 55 degrees F. So, a basement or a cellar might be an ideal location for the purpose, although some people also opt for refrigeration.
Furthermore, ensure that there is no direct exposure to sunlight in the area where the seeds are stored. Ideally, keep them in a mesh bag, as this allows adequate air circulation.
A good mesh bag will also prevent insects from entering it and damaging the seeds. Also, if you notice mold or fungi on the seeds, it is best to throw them away.
How To Test Frozen Grass Seeds
Place your grass seeds in water for 15 minutes and check if they float. If yes, they can still be used for germination.
Final Words
So, does grass seed go bad when frozen? Well, I hope this answers your question.
In reality, grass seeds can last for years if kept in cold conditions, and you can generally use frozen grass seeds in your garden. However, keep a lookout for insects, fungi, or mold, as they are natural seed killers.
That’s it for now. Do come back next time for more such reads. Goodbye!