Does Grass Seed Go Bad? 5 Things You Should Know About Grass Seeds
You notice a bare patch in your lawn, and you immediately think of the grass seed bag lying in your garden shed. You feel happy and get to work; plant the seeds, and then add fertilizer. However, even after watering it regularly, you notice that the bare patch remains bare! This has happened to me.
I used some old grass seed to plant on my lawn. I waited for a few weeks and replanted but the same result. Nothing happened. I noticed some scruffy growth here and there, and that’s it. I asked a friend who is an expert in lawn maintenance. He wanted to know how old the seeds were. I was surprised and asked, “Does the grass seed go bad?” He told me that the germination rate of grass seed decreases as it ages, resulting in a bad, spotty, or no growth at all.
Are Grass Seed Likely to Lose Potency with Time
The clear answer to this question is yes, but this happens after a considerable period. Most gardeners don’t think of this factor when stocking up on grass seed. They like to be well prepared and keep bags of grass seed in storage.
Usually, grass seed is good for the first 18 months or so. After that, you will notice a steady decline in its quality. Generally, experts have estimated that the grass seeds will lose their germination rate by approximately 10 % every year. You must also keep in mind that even the new seeds are not 100 % effective. On the packs, they only promise a 90 % germination rate. Starting with 90 %, it will be down to 80 % the next year and another 10 % down the year next to that. This decline mainly depends on two things:
Other Factors Affecting the Effects of Grass Seed
As we mentioned earlier, the germination rate of grass seed goes down steadily with time. It mainly depends on factors like the variety of grass plants and storage conditions. Apart from this, some other factors affect grass seed quality. These are:
Why Should You Store Grass Seed Properly?
Obviously, it would be best if you tried to store grass seed properly otherwise, it may get spoilt. The grass seeds are quite expensive, depending on the variety, and you don’t want to lose your hard-earned money in this way. Moreover, when you really need the seeds to fill in the scanty or bald patches, you will be disappointed with bad seeds. It would be best if you remembered that even new seeds don’t have a 100 % germination rate.
How To Store Grass Seeds Properly
For any gardener, it is essential to know how best to store grass seeds. It will save both money and time. Here are a few things that you can try. Watch this video for more information.
Conclusion - How Long Can You Store Grass Seeds?
It is essential to give the grass seeds the best chance to start, as improperly stored, or old seeds can become less effective. Most grass seeds have an expiry date of about 2 years, and some can even last for 5 years. If you keep storing old seeds beyond the expiry date, then you are basically keeping useless seeds. Storing for more than 18 months can leave the seeds' germination rate at a very low level. There are a few things that you can try to bring old seeds back to life.