I use foxfarm grow big and have used it for years, LOVE IT. I usually water my ladies every 4-5 days and I feed them 1 teaspoon per gallon (even my moms) every watering. The directions say 2-3 every other watering and I tried that and wasn't happy with the results, but the old directions said 1 teaspoon per gallon every watering and that's what I have always stuck too...good luck