Year old bone meal.

[ChelswannabeGT]

It’s from last season. Can I use it? It has been opened but there’s still a ton left or does it need pitched?

 

[DirtMechanic]

It is fine. Go ahead!

 

[alp]

I had 7 years' old seeds germinating. Last year is OK.

 

[Chuck]

Just send it to me. I'll get rid of it for you.

 

[headfullofbees]

Bonemeal is still useable after 10 years.