Charcoal is a black, lightweight, porous substance that is made by heating wood or other organic materials in an environment with limited oxygen. Charcoal is a soil amendment that can improve soil health and plant growth in many ways. Charcoal can increase soil porosity and reduce waterlogging, which can help prevent root rot and fungal growth. Charcoal's low density can help lighten heavy soils, which can improve drainage and allow air into the soil. Charcoal can help control pests and insects that are attracted to damp soil. 

• Wet the soil thoroughly
• Mix 1 lb of activated charcoal with 1 gallon of water
• Water the solution into the soil
• Agitate the solution so the charcoal doesn't settle
• Wait two days before planting or replanting