What is good Plant food for a rosemary plant and should I trim the tops of the plant that are dry? Would it have better growth if trimmed?
Any plant food that you would use on a vegetable garden should be fine, but Rosemary doesn't really need careful fertilization in order to do well. I routinely grow very healthy rosemary plants with no fertilizer at all. Soil composition and sunlight are really more important factors. These articles may help you: