Lydia Grace Finch brings a suitcase full of seeds to the big gray city, where she goes to stay with her Uncle Jim, a cantankerous baker. There she initiates a gradual transformation, bit by bit brightening the shop and bringing smiles to customers' faces with the flowers she grows. But it is in a secret place that Lydia Grace works on her masterpiece -- an ambitious rooftop garden -- which she hopes will make even Uncle Jim smile.
