Where can I buy Medicinal Herb Plants?

I have recently wanted to grow my own medicinal herb plants, so that I can have the ones that I am planning to use on hand year around. I looked for awhile and was surpirsed that it took a long time to find this website- Crimson Sage Nursery.

They offer medicinal plant sets like:
Cold and Flu sets
Salve Making sets
Respiratory support sets
and many more.

I would like to eventually have a little greenhouse like the one I posted about a few weeks ago for just medicinal herbs, but probably not this summer.