When times get incredibly tough for her family, young Lydia Grace Finch is sent away to the bustling, gray city to live with her cantankerous Uncle Jim. Leaving her rural home behind is difficult, but Lydia refuses to leave her passion for growing things. Packing her small suitcase full of hope and a massive collection of seeds, she arrives at her uncle's bakery ready to work. Slowly but surely, Lydia begins to transform the gloomy shop, planting vibrant flowers in every available window box and bringing bright smiles to the weary customers' faces. However, her ultimate goal is to create a breathtaking, secret rooftop garden spectacular enough to finally make her grumpy uncle crack a smile. Told entirely through heartfelt letters, this inspiring and visually stunning historical tale celebrates the immense power of bringing beauty and joy into a dark world.