I am doing the same kind of thing, except I use Great Mullien and Wormwood leaves.
The Great Mullien ia a local plant for me, some call it a weed, but I found some and
propagated a few plants and now I grow enough to get about the same amount as you do.
I dont know why I add the wormwood.. i just grow a lot of it and it grows rapidly and
takes well to being cut back. So I throw it in.
I'm looking to add even more.. maybe I'll get some Russian Comfrey to add to the mix.
Good Advice!
~Experimentalist