Water when the top inch (2–3 cm) of soil has dried out, usually about once a week in spring and summer and less in winter. Your peace lily will tell you when it's thirsty: the leaves droop dramatically, then perk up within a few hours of a good drink. Try to water just before that point, though, as regular wilting leads to yellow leaves and brown tips over time. Water thoroughly until it runs out the bottom, and never leave the pot sitting in a full saucer.

Medium to bright, indirect light keeps a peace lily lush and flowering, like near an east-facing window or a few feet back from a south- or west-facing one. It's famous as an indoor plant that copes with low light, and it will survive in a dim corner, but it rarely blooms there. Keep it out of direct sun, which scorches the leaves, and away from cold drafts; it's happiest between 18 and 27°C.

Feed once a month in spring and summer with a balanced liquid houseplant fertilizer diluted to half-strength. Skip the snacks in fall and winter. Too much fertilizer builds up salts that burn the leaf tips, so when in doubt, feed less.