Super-Dug Extra is a remarkable product inspired by the preferred organic fertilizer of the Victorian age – “guano” It is a concentrated, fully composted natural manure, which is many times more efficient than ordinary farmyard manures. It is not a potting compost, nor is it a mulch. Super-Dug Extra is free of weeds and low in moisture. It is environmentally friendly, totally peat free, neutral in pH and 100% organic!