The origins of herbal medicine are the origins of civilization itself. Only imagine that all these herbs were known and used thousands year ago: for healing, food, drinks; to eliminate bad odors; for making soap and body scrub; to dye clothing and even hair. There is no plant, no part of a plant that could not be used one way or another. If you are interested in growing some herbs in your back yard, you can check out this link for the UK and this link for the USA. These two companies are selling seeds and gums of the wild herbs online. I just found them in Google. I used to buy seeds of wild plants back in the 80-s, and from that experience I know that you will get literally a few seeds in that paper bag, but don’t panic, it will be enough to start your herb…