Rosemary is a flower in RuneScape. Rosemary will protect any surrounding cabbage plants from pests and disease whilst they are growing. Members can grow this plant from a rosemary seed at level 11 Farming to gain 12 experience points for planting it and 66.5 experience points for harvesting it. It takes 22.5 minutes starting at the plant time to mature into a plot of rosemary flowers.
Rosemary has very limited practical uses. The most productive use of Rosemary (once harvested) is to add it to the compost bin. Players can also use it to make impling jars, but the process is complex, slow, and there are easier ways to obtain impling jars.