Grass Seed Shelf Life

[Joel]

Does anybody have any idea on what the shelf life of grass seed stored in the sealed, original bag is?

Thanks, Joel

[Steveo]

The rule of thumb is two years.

[Winter]

If it is completely dry and not exposed to extreme temperatures, it will be good for at least a few thousand years.

Dennis

[Chet Hayes]

That's not true. The germination rate of seed declines over time, which is why the date the lot was tested is important. Typical grass seeds can be stored a couple of years in a cool, dry place and still have acceptable germination rates. Anything over a year old, I'd do a test prior to use to make sure the germination rate is acceptable. Also, endophyte enhanced seed loses the endophyte protection in a much shorter time, less than a year.

[HWick]

they have found wheat seed in the ancient pyramids that sprouted and grew. ........... Hank

[Bob]

seed stored in

I used some dated year 2000 in an opened bag a couple weeks ago. It is now growing well.

Bob