House Plants / Cacti / Hanging Baskets The general rule is to top dress your pots, the watering of the plant then leaches the goodness into the compost, a small handful every month should suffice. Existing Plants /Shrubs and Trees (including Ericaceous) Mix or dig in generous handfuls around the base, or Top Dress and then repeat regularly throughout the growing season. Vegetable Garden If sowing or planting in rows, lightly cover the entire row before covering with compost. Some types of vegetables prefer a side dressing, meaning dug out rows of covered worm castings adjacent to the plants. Most growers use worm castings at a higher ratio in vegetable plots, up to 25% but we would always recommend little and often. Propagation /Potting on/Seedlings You can line the base of your smaller pots or mix into your compost, but it is not recommended to plant or sow directly into pure worm castings due to the high NPK values. Organic Growers This is perfect for your Compost tea. Add your worm castings to a porous bag of your choosing and tie the end of the bag. Place the bag of castings in your container of water and leave overnight. In the morning the water should be light brown and that water is your worm tea. The Technical Bit: NPK Analysis N ( Nitrogen ) -3% P (Phosphorous) -2% K ( Potassium ) -2% Also other useful stuff it contains ? Calcium ( Ca ) , Magnesium (Mg) ,Sodium ( Na ) ,Copper (Cu ) ,Zn ( Zinc ) ,Iron (Fe ) ,Boron (B ) , Manganese (Mn ) Beneficial Microbes and Micro Organisms (and the occasional worm)