On the bottle it says half tsp per gallon for foliar feeding. 4tsp per gallon for heavy feeding. And 2-3 tsp for recirculating systems. The guy at the shop said use 3 tsp per gallon sinse I am not doing a real heavy feeding and I am not foliar feeding. So I put 3 tsp in a gallon of distilled water. I mixed it good. I measured 1/4cup of that and added 3/4cup of plain water to it then put that in a water bottle. I fed it with my carrot stake. (its an 10" hollow carrot with holes it it that attaches to water bottles - stick it in the ground to feed directly to the roots)