Watering in low light

More low-light houseplants die from kindness than from darkness. Light drives the engine that uses water; less light means the engine idles and the soil stays wet. Wet soil starves roots of air, and roots rot.

The finger test

Push a finger 3–5 cm into the soil. Dry at that depth for a ZZ or snake plant? Water. For a pothos or peace lily, water when the top 2–3 cm is dry. That's the whole system, and it costs nothing.

Seasons

From late autumn to early spring, light is short and weak even in bright homes — stretch every interval. Monthly is normal for a ZZ in winter.

Signs you're overwatering

Yellowing lower leaves, a musty smell, soil that stays dark and wet, fungus gnats. See why plants really die for how fast this happens.

Signs you're underwatering

Crispy leaf edges, soil pulling from the pot wall, dramatically droopy pothos stems that perk up after watering. Underwatering is the recoverable mistake; overwatering usually is not.