Herbs can be an important part of ritual and spellwork, regardless of your particular path. But there are so many that it can be difficult to develop a good working knowledge of them all. These lessons will introduce each herb with magickal correspondences, uses, medical concerns, myth, history and more.
This free e-mail course is 50-weeks long (basically, one year), with one weekly lesson for each herb
http://paganwiccan.about.com/c/ec/10.htm