USA nutrient. 100% Organic, natural sources, bats poo etc. Good for all plant species. Strong concentrate that goes a long way. It is the recommended nutrient for soil growers. If you are growing in soil, use Earth Juice Grow & Bloom. 100% organic and excellent results both indoors and outdoors. Use Earth Juice Catalyst as a hydroponic solution additive at the rate of 5ml per litre to turn any hydroponic nutrient into a hydro-organic solution. Earth Juice Catalyst also helps with nutrient uptake into a plant. A little Earth Juice goes a long way. Universal formulation for hard water and soft water.