Posted 19 January 2026, for the LET IT RAIN Poetry Contest
Sponsored by: Nette Onclaud
Petrichor is the pleasant, earthy smell that occurs when rain falls on dry soil, a scent created by oils from plants and compounds like geosmin from soil bacteria, released into the air by raindrops. The word, coined by Australian scientists in 1964, comes from Greek words for "stone" (petra) and "blood of the gods" (ichor).
