we have tons of rosemary growing here. it grows into big bushes and is green year round. it’s one thing the deer don’t eat. essential oils are pricey. rosemary is abundant, so i decided to make my own oils. it’s good for so many things. you just pack a mason jar with fresh rosemary, fill with oil, put in a sunny window for a month or so and voila! i looked up a site for exact instructions, so enjoy!