Using earthworm compost increases soil workability, water holding capacity, porosity and drainage. Soil temperatures are moderated, making plants less susceptible to extremes of heat or cold. Compost nutrients are released slowly, and made available to the plant. Compost creates enhances microbial action in the soil.
Place in the hole before transplanting seedlings.
Mix 1 part Vermigro organic compost: 4 parts soil (potting soil/seedling mix, etc.)
Mulch around the base of plants.