Kathryn Knight Sonntag was born in Salt Lake City, Utah on August 7, 1983. She received a BA in English and a BS in environmental studies from the University of Utah before earning a Master of Landscape Architecture and Environmental Planning from Utah State University in 2014. Her thesis focused on the role of the transcendent in landscapes and greatly informs her first collection of poetry, The Tree at the Center (BCC Press, 2019).

Knight Sonntag is a poet, landscape designer and land planner. She works in Salt Lake City and currently serves on the poetry board of Segullah.