Owing to Llyri’s ashlessness, trees and assorted flora are much easier to grow within the city. Through centuries of careful cultivation, many species have become themselves a deterrent to ash, granting Llyri a tenuous natural layer of defense, that its citizens might focus on other pursuits.

Given the sylph’s general contempt for the purgatory they consider Erj—and for its non-sylph inhabitants—they publicly enjoy championing this horticultural dominance as proof of their righteousness. However, due to Llyri’s decline in recent decades, the Celestial Heritage Conservatory has taken to surreptitiously selling seedlings to some of Erj’s wealthiest private citizens for exorbitant prices.