Hi, i have a pack of Living Organics from Green Buzz Liquids that i bought last year and i wonder how long do these similar products last usually? It used to be a light brown/grey powder when it was fresh, but now it's dark brown and hardened in clumps. I admit i didn't store it properly, it was in a dark box but it went through all kinds of temperatures and humidity. What's the worst that can happen? Any dangers for the plant such as root disease, or would it just be ineffective like shooting blanks? Thanks in advance.