Phyllis Hogan has been a practicing Southwest herbalist for 25 years. She is the proprietor of the Winter Sun Trading Company, located in Flagstaff, Arizona, USA established in 1976. Winter Sun specializes in traditional organic southwest herbs and tinctures and American Indian Art, focusing on the Hopi and Navajo of northern Arizona.
In 1983 she co-founded the Arizona Ethnobotanical Research Association (AERA), a 501(c)(3) private nonprofit educational and scientific organization. The AERA was organized to investigate, document, and preserve traditional plant use in Arizona and the greater southwest. The AERA was recently awarded recognition by the American Herbalist guild at their 14th annual symposium for outstanding contributions in the field of American ethnobotany.
Hogan has lectured on southwest herbal medicines and their traditional uses throughout the United States and in Finland. In April of 2000 she was keynote speaker for the first ethnobotanical festival at the Lady Bird Johnson Wild Flower Center in Austin,Texas. She has taught ethnobotany in bilingual education programs and health education for the Pima, Hualapai, Havasupai, Hopi, and Navajo tribes. She is the coordinator of the AERA's annual educational symposium and senior editor of the yearly AERA ethnobotanical journal and newsletter The Plant Ambassador.
Hogan is currently Practitioner Associate in the Anthropology Department at Northern Arizona University, Adjunct Professor in Biology at Northern Arizona University, guest faculty member at the Southwest School of Botanical Medicine in Bisbee, Arizona. Phyllis is also a board member of the nonprofit Tucson based heritage seed conservation organization Native Seed Search founded in 1983.

In 1993 Phyllis joined the American Folk Rock Band Each Others' Legend as the back up singer with her life partner Joseph Langham. With over 40 original songs recorded and 3 albums released, the band is currently recording their fourth CD. EOL's current CD Let the World Go Free from The Tyranny can be purchased on line at CDBaby.com or check out the EOL website.