100% Organic Compost from seaweed Posidonia Oceanica. Peat free, Vegan, Animal Free organic Fertilizer. Big bag size 90*90*180 cm, Weight 1 t (1750 lt). Organic Matter 25-35%, Ca 2.8-3.5%, N 0.4-2%, Mg 0.6-1.5%, P 0.1-1%, K 0.3-1%, Fe 3000-5000 ppm, PH 7-8, Humidity 30-45%.