Blood meal is a by-product of animal processing and an excellent source of nitrogen. Mix it with your compost to speed up the decomposition process, but do not mix it with seedlings. Use it only in small amounts to avoid plant burn and be sure to activate the fertilizer with a basic watering.
Bone meal is one of the top natural sources of phosphorous and it works especially well with root systems. It is a slow release fertilizer that should be raked into the soil either at the start of the growing season or a few weeks before planting. Remember, never use products high in phosphorus unless you are fertilizing a new lawn or responding to a soil test.
Fish products come in a variety of forms, such as fish emulsion, meal, powder, or liquidized fish. Nutrient release time depends on the type of fish fertilizer being used, but fish products are generally more available to plants than animal fertilizers.
Rich in potassium, nitrogen, and phosphorus, chicken manure provides more nutrients than most other manures. Although considered safe, it is a good idea to handle any manure-based fertilizer with gloves.
Often called ‘black gold,’ vermicasting is essentially worm waste. It is a unique fertilizer because it makes use of already present, but previously unavailable soil nutrients, making nutrients immediately available to plants after application.