True Organic 4# Seabird Guano

True Organic™ Seabird Guano is a more than just bird droppings. Guano is a completely natural substance with a truly amazing nutrient profile, and arguably one of the most powerful plant fertilizers on the planet. Seabird guano features a combination of readily available and slow-release nutrients so your plants get the nutrition they need right away, and the other nutrients become available to the plants over the course of the crop cycle. For in-ground and container plants. One four-pound bag covers up to 70sq ft. NPK Analysis: 6-12-0. OMRI Listed®.