Natures Own Guano Super Grow is a highly concentrated 100% organic food for your vegetative plant. It contains soluble trace elements and nutrients essential for your plants development. Guano is derived from seabird, cave bat and seal excrement so you can be assured you are getting a nutrient rich in organic goodness. Super Grow is suitable for soil and hydroponic gardening. MIXING GUIDE: 5ml per 1 litre of water. Shake well before use and store in a cool dark location.