Package contains 50 organic all purpose plant fertilizer spikes and is produced to avoid wasteful runoff, mess, hazards and smellsPlant fertilizer is formulated with a 4-4-4 NPK to provide vegetables, plants, and flowers nutrients they need for a high yield and vibrant foliageJobe's organic fertilizer contains no synthetic chemicals and is OMRI listed for organic gardening by the USDAApplication is simple and should be done every 8 weeks or as needed during the growing seasonJobe's organic fertilizer spikes are pre-measured to provide the right amount of nutrients for vegetables, flowers, & plants without over fertilizing