Sustane Flourish is a water dispersible fertilizer that provides a powdered mix of organic nutrients and bio-stimulants formulated specially to provide complete nutrition. WDF is specially formulated for superior hydroponic and fertigation-based nutrient management programs. Suståne Complete promotes greater root development, improves buffering against changes in pH and is rich in humic acids. Mix 1 tbsp. per gallon, or 1-2 lb per 100 gallons. OMRI Listed.