The inflorescence opens at an hour nobody schedules. Late evening, usually, with the room cooled and the lights down — a Philodendron gloriosum I'd had for six years cracked its spathe one Tuesday in March, and the smell came first: faint, sweet, vaguely of nutmeg and wet bark. By morning the spathe had relaxed into a pale hood and the spadix glowed a soft cream against it. I had eighteen hours, maybe twenty, before that window closed for good.
Pollinating aroids at home is not gardening so much as appointment-keeping. The plants set their own schedule, in their own thermogenic rhythm, and you either meet them or you don't. There is no second draft. Miss the female phase by half a day and the flower becomes a slow ornament, then a stub, then nothing. The people who do this well are not the people with the biggest collections. They are the people who pay attention.