Old blood meal?
I have some bagged blood meal that I bought a few years ago that has been sitting in my shed outiside. I use it every year with great results. This year, however, it seems like it's not working at all on my garden roses, clems, etc. I wonder if it's just my impatience or can blood meal go "stale" or old? Should I buy fresh? I prefer using organic fertilizers over chemical whenever possible.