This fertilizer is excellent for edibles growing in the GreenStalk Vertical Planter! It is safe for all plant types and growth stages. It won't burn plants and doesn't have any odor. Worm castings also have trace nutrients which can help build healthy soil. Each 5lb bag includes approximately 15 cups.
Instructions: Add the castings to the soil or around the stems of the plants.
1.5 cups of Organic Worm Castings per Original Tier
1 cup of Organic Worm Castings per Leaf Tier