Organic compost starter speeds up the composting process and is ideal for outdoor compost piles Compost accelerator is formulated with a 4-4-2 NPK to provide vegetables, plants, and flowers nutrients they need for a high yield and vibrant foliage Jobe’s organic compost starter contains no synthetic chemicals and is OMRI listed for organic gardening by the Compost starter is easily applied and should be used every 4-6 weeks or as needed provides a wide variety of plant fertilizer and soil amendments to give gardens the right amount of nutrients without over fertilizing