Farmer, herbalist and filmmaker, Mary Blue, of Farmacy Herbs of Providence, R.I., is coming to Hudson to screen her latest documentary on herbal activism and health justice community organizing, Herbal Aide.The film highlights grassroots herbal activists and organizers all over the country. Blue will facilitate a discussion about the film following the screening. The evening will also feature the latest tunes from farmer, herbalist and songwriter, Eli Weaver of Lancaster Farmacy of Lancaster, Pa. For more information, call (518) 620-6378.