Is blood meal better for roses than commercial fertilizers?
Any form of fertilizer available as an organic form is nearly always better for plants. What I mean by organic is that some decomposition must take place for nutrients to be released. There are farm-type fertilizers, such as urea, that are considered organic by fertilizer companies. This is not an organic fertilizer to organic gardeners. In defense of farm-type fertilizers, the plant cannot tell the difference if nitrogen or any of the other elements came from an organic source or not. To the plant, nitrogen is nitrogen. However, this is not what makes an organic fertilizer more valuable to a plant. An organic fertilizer is valuable because of all the other accessory chemicals released through decomposition. These chemicals are substances such as organic acids. These acids aid the plant in the uptake of other nutrients like iron, manganese and zinc. The overall nutrition of the plant and soil is improved. The decomposition process also helps make our desert soils more acid. This is ext