Houseplant Light, Explained by Window

"Bright indirect light" is the most repeated and least explained phrase in houseplant care. This guide translates light labels into actual windows, actual distances, and actual plant choices, for a typical US home in the northern hemisphere.

The four windows

South-facing: the sun engine

Strong direct sun for most of the day. On the sill: cacti, succulents, citrus, rosemary, and most flowering plants. Two to four feet back, or filtered through a sheer curtain, this becomes the "bright indirect" that monstera, fiddle leaf figs, and rubber plants want. Watch for scorched, bleached patches on foliage plants placed too close.

East-facing: the gentle all-rounder

A couple of hours of mild morning sun, then bright shade. This is the most forgiving window in the house: calathea, ferns, hoya, peperomia, philodendron, orchids, and almost anything labeled medium light. Morning sun is cool sun, so even delicate leaves tolerate the sill.

West-facing: the hot afternoon

Similar hours of sun to east, but in the afternoon when it is hotter and harsher. Sill: succulents, snake plants, tougher tropicals. Delicate plants a few feet back or behind a sheer. West sills in summer can cook thin-leaved plants.

North-facing: the quiet corner

No direct sun, only ambient sky light. Honest options: pothos, ZZ plant, snake plant, cast iron plant, philodendron (leggier than it would be elsewhere), and ferns close to the glass. "Low light tolerant" means survives, not thrives; expect slower growth. Our low light guide has the full list.

Distance is everything

Light intensity falls off brutally fast indoors. A plant six feet from a bright window may receive a tenth of the light it would get on the sill. When a plant sulks, moving it three feet closer to the glass is the highest-value intervention available, ahead of fertilizer, new soil, or pep talks.

Reading the plant

• Not enough light: long stretches of bare stem between leaves, small new leaves, leaning hard toward the window, variegation fading to plain green, soil staying wet for two weeks.
• Too much light: bleached or scorched patches, crispy edges on thin leaves, colors washing out, soil drying within a day or two.

Fixing a dark home

• Clean the glass and pull back heavy curtains; both are worth more than they sound.
• Mirrors and pale walls bounce useful light into dim corners.
• A full-spectrum LED grow bulb in a normal lamp fixture, run 10 to 12 hours on a timer, turns any corner into an east window for a few dollars a month. Look for bulbs listed around 2,000 lumens or more for a single plant.
• Rotate plants a quarter turn at each watering so they grow even instead of lopsided.

Match the plant to the window, not the reverse

The cheapest way to succeed is to buy for the light you have. Take our houseplant picker quiz with your actual windows in mind, and read the buying checklist before you head to the nursery.