Harvesting, happy happy happy :) Posted by agreenleafblog 0 Here goes my first try on drying herbs…. Herb leaves drying on a tray Preserving rosemary leaves by freezing them in water in an icecube tray. Once the cubes are frozen I will move them to a freezer safe ziplock bag to store in the freezer. From there I can use them in soups, drinks etc.