Holly has written about rivers; mountains; tree migration; ancient fossils; extinction; deep time; the night sky; Hawaiian star navigation; the harvest of mescal agave; mycelium networks; mushroom foraging; urban watersheds; root-digging and medicinal plants; billionaires in space; the timber, gas, and coal-mining industries, coal ash spills and coal ash dumps; public art; square dancing; freshwater mussels; cricket song; music and sound; walking; and long train rides.
She is a recipient of the Middlebury Fellowship in Environmental Journalism, the Thomas J. Lyons Fellowship from the Western Literature Association, and the Jackson Fellowship at Hollins University, where she earned an MFA. In 2015, she was the Artist-in-Residence at Guadalupe Mountains National Park.
In addition to writing, Holly is an educator, a forager, an herbalist, and a naturalist. She earned a Southern Appalachian naturalist certificate at the Great Smoky Mountains Institute. Originally from East Tennessee, she has lived in New Mexico, Utah, and Virginia, and is currently based in the Georgia Piedmont.
She is a member of the Society of Environmental Journalists.
Holly is represented by Bonnie Nadell at Hill Nadell Literary Agency in Los Angeles and is at work on a book about listening, for Bloomsbury.