This Natural Plant Feed & Soil Conditioner Is A Mulch That Is Mixed Into The Soil Or Compost Before Planting, Or Used On The Surface As A Top Dressing.it Is Rich In Nitrogen, Phosphorous, Potassium & Other Trace Elements, It Is Broken Down Gradually By Organisms In The Soil As A Long-term, Slow Release Organic Plant Fertiliser.excellent At Retaining Water When Used As A Mulch On The Surface Or When Dug In To The Soil, Which Reduces Your Watering Requirements Through The Dry Summer Months. As A Mulch On The Surface It Also Helps To Suppress Weeds.natural Plant Feed & Soil Conditionerslow Release Plant Fertiliserapproved For Organic Growinghelps To Retain Moisture In The Soilsuppresses Weeds When Used As A Mulch npk: 4.1-2.2-3available In 16 Litre Tubs Or 50 Litre Bags