This compost is specially formulated to be an all natural, 100% organic fertilizer. LDK & Sons, LLC keeps your family in mind by keeping their products sustainable and safe to use without any worries! This can be used in gardens or containers. Directions for use: Gardens: Spread a uniform layer up to 2 inches on top of the soil, then mix in for best results. Containers: Mix 1 part compost with 2 parts of your favorite potting soil mix.