Oliver works in product at a London software company, which mostly means spreadsheets. On weekends he loses hours to plant taxonomy — he has a small library of monographs and a running list of species he's still trying to tell apart.

He writes the plant-ID pieces: what features actually distinguish look-alikes, how to work from a phone photo when you have no label, and when to stop guessing and check Kew's Plants of the World Online. If you can't tell a Mini Monstera from a Philodendron, he's already written about it.