What is the difference between organic and inorganic fertilzers?
Organic fertilizers are derived from living things such as animals and plants. Most common are manures, bonemeal, fish meal etc They are generally slower to release as microraganisms in the soil have to break them down first so the rose plant can use them. Inorganic fertilizers are man made formulas that can be formulated for various speeds of release. Roses benefit from both kinds and a good idea is to alternate the two types.