TheRealDman
Well-Known Member
I work in a commercial greenhouse for my day job, I deal with plant product reps almost every week, I happen to know the shelf life is indefinitely. It will last. I have 2 big bags of that stuff right now in my garage. I have not tried it on Cannabis yet but plan to in the near future. Just keep it stored in a cool dry place it will last until you use it all, it stays stable.
Next time you swing by, I'll give you a sample of the custom blended salt based nutes I use. Very refined, 100% water soluble, low ppm (<300ppm). Very easy use...2tsp/20lt, one for veg (20-10-20), one for bloom (4-18-38 ). All micros added, no supp's needed.