Merry Meet, I was doin the same thing last night and found 2 sites that may be of interest. herbalmusings.com had some great articles and information.

northernstarcollege.com has a 3 year course that will get you a certificate in spiritplant magic, I think it was called.

You may, if you haven't already, expand your search to homeopathy and aromopathy.

good luck.
Eelya

I am a member of the witchschool. Go to
witchschool.com they have tons of free courses. Im a life time member , so if I take a class , if they take books or other material , i only pay for them , not the course.They have alot of many subjects. So take a look at this school.
Blessed Be

I see it didnt show the web site, so I will see if it will post it spaced,
http // www . witchschool . com hope this shows it.
Blessed Be