The Watering Table

One table, forty plants. How much light they need, how often to water, whether they care about humidity, and how easily they forgive a mistake.

Last revised 28 August 2026 · 40 entries

Care requirements

Watering intervals assume an average heated room in spring and summer.
Plant Light Water every Humidity Forgiving Watch for
Snake plantSansevieria trifasciata Low to bright 3–5 weeks Any Soft base — always overwatering
ZZ plantZamioculcas zamiifolia Low to medium 3–4 weeks Any Yellowing stalks near the soil
PothosEpipremnum aureum Medium, indirect 7–10 days Any Long gaps between leaves means too dark
MonsteraMonstera deliciosa Bright, indirect 7–10 days Medium New leaves without splits — needs more light
Peace lilySpathiphyllum wallisii Medium, indirect 5–7 days Medium to high Dramatic wilting — recovers in hours
Rubber plantFicus elastica Bright, indirect 10–14 days Medium Leaf drop after being moved
Spider plantChlorophytum comosum Medium to bright 7 days Any Brown tips from hard tap water
Fiddle-leaf figFicus lyrata Bright, some direct 10–14 days Medium Brown patches spreading from the leaf edge
CalatheaCalathea orbifolia Medium, indirect 4–6 days High Crisp edges — humidity or water quality
Boston fernNephrolepis exaltata Medium, indirect 3–5 days High Dropping fronds the moment it dries out
Chinese money plantPilea peperomioides Bright, indirect 7–10 days Any Leaning hard toward the window
AloeAloe vera Bright, direct 3–4 weeks Low Flat, splaying leaves mean not enough sun

Light

Bright indirect means within a metre or two of a window, out of the direct beam. Low light still means light — no plant grows in a windowless room.

Water every

A starting point, not a schedule. Halve the frequency in winter, and always check the soil before pouring anything.

Humidity

High means above roughly 60 per cent. Misting does very little; grouping plants together or running a humidifier does a lot.

Forgiving

Five dots means it will survive a fortnight of neglect. One dot means it will register every mistake you make, and remember it.

If you take one thing from this table, take this: the watering column is the least important one on it. Light determines how fast a plant uses water, so a plant in a dark corner watered on a bright-window schedule will drown. Fix the position first and the watering sorts itself out.