FoxFarm Happy Frog Cavern Culture Fertilizer 1-12-0 is a specially formulated plant food that delivers nutrition to all kinds of plants. It features an NPK ratio of 1-12-0 with a special blend of bat guano, seabird guano, soil microbes, and rock phosphate to provide essential nutrients to plants where they need it most. It is designed to boost their growth and promote better bud development and more blooms. It also includes Mycorrhizal fungi to help enhance root efficiency which improves water absorption and nutrient uptake. This tried and tested fertilizer will deliver a promising result to your plants! Available in 4 lb. bag.