Some eye-catching scenes of fungal/vegetal horror in this generational tale of human-plant hybrids who have to slather on the sunblock to prevent runaway photosynthesis and take obscure "suppressants" to stave off auto-composting, and at its heart the novel is expressing something queasily comforting about the parent-child bond, but the plot rambles like a briar and the near-future backdrop of supermarket looting and garbage-dump hard-drive mining is insufficiently developed. Books with teenaged protagonists should come with an advisory label, although this one is less annoying than most.