Hey, I know Dagie and she's great.
She does all kinds of "natural" environmental friendly developers. Last year she did some workshops around LA...she's based in Berlin.
Because of her, I've experimented with Lichen and juniper berries for developers and also some different herbal teas.
They have all worked in varying degrees and made the house smell odd at times too.
She posts a lot of her stuff on Facebook too.