Ada Limón, award-winning poet and beloved host of the popular podcast The Slowdown, has kept a catalog of cherished trees that have grounded and inspired her throughout her life— trees that have marked time and place and have expanded meaning about what it is to be alive on this planet. Here, in a piece that is equal parts a tribute to nature’s power and mystery, boldly confessional memoir, and honest reckoning with our world’s beauty and its many upheavals, she takes the reader on a tour tree by tree, from California and New York City to Cape Cod and Kentucky.