So in using barley in soil mix, I picked up a 1lb bag from local brewer supply myself and top-dressed last time around for the hell of it. I was going to use the left over barley from that in the new soil mix I put together but was uncertain if it was even worth bothering since it had been 4-5+ weeks since I purchased it and they did the 'cracking' of it with the mill in the store to help sort of activate things; I didn't end up using it since I figured I had let it sit too long to be worth bothering with. Plus as cheap as it was, I'd just go get fresh if I thought it was vital.
What type of 'shelf life' would you all think applies to barley, especially once cracked...