Vermicompost : (vermi-compost) is the product of the decomposition process using various species of worms, usually red wigglers, white worms, and other earthworms, to create a mixture of decomposing vegetable or food waste, bedding materials, and vermicast.
How to use Vermicompost
You can use your vermicompost immediately, or you can store it for up to a year and use it throughout the gardening season. Worm castings can be directly mixed with your potting soil or garden soil as an organic fertilizer. The compost can also be used as a top dressing for your indoor or outdoor plants. In pots and containers, don't use pure vermicompost. Mix a ratio of 1:4 vermicompost to potting soil. You can also use vermicompost to make "worm tea" liquid fertilizer to sprinkle near the roots of plants. Mix two tablespoons of castings with a quart of water and let it stand for a day, shaking it occasionally.
Use like compost -- dig it lightly into the topsoil when mulching grow beds or preparing new beds, or apply a light top dressing around mature plants, shrubs, and trees. Vermicompost generally goes about three times as far as ordinary (aerobic) compost, so use one-third as much. Generally, 3 tablespoons of vermicompost per plant is plenty. Then, water each plant deeply taking care to soak the worm compost that you just spread, which will help work the nutrients down into the soil.
Use for germinating seeds -- castings mixed 50/50 with potting soil produces a growing medium for seedlings that give plants a great start to life.
Use on transplants, especially bare-root transplants -- spray roots with a diluted "worm tea" solution to help prevent transplant shock.
Store in dark, cool place -- keep in a breathable container where the castings won't dry out. The active microbes will keep for up to a year.
