Organic Single Element Fertilizers
The fertilizer products in this section are used by the more experienced gardeners who wish to solve a very specific nutrient problem in their garden. Blood Meal is pure Nitrogen and Bone Meal is pure phosphorus. You would usually apply these products to respond to a nutrient deficiency that is obvious for a single plant or a group of plants of the same species.
Do not use these products unless you are very confident you know what you are doing.