Which direction your windows face changes almost everything about what you can grow. Two people can follow the exact same care advice, put the exact same plant three feet from the exact same window, and get completely different results — because one window faces south and the other north.

This is a short field guide to reading window direction. It's calibrated for the Northern Hemisphere (flip north and south if you're below the equator). Nothing here is theoretical — it's the practical version, focused on where in the room the plant actually goes.

Finding which way your windows face

If you don't already know, the fastest way is a compass app on your phone. Stand at the window, face outward through the glass, and check the reading. Or watch the sun for a day: it rises in the east, moves through the south, and sets in the west. A window that never gets direct sun at any point is north-facing.

South-facing windows (Northern Hemisphere)

What it offers: The brightest light in the home. Direct sun for most of the day in winter and for four to six hours in summer.

What loves it:

  • Cacti and succulents right on the sill
  • Citrus trees and figs a foot back
  • Croton, bird of paradise, hibiscus, jade
  • Almost any full-sun tropical

What burns:

  • Most tropical foliage plants placed directly on the sill in summer — monstera, calathea, philodendron, ferns. The direct midday sun scorches soft leaves. Move them three to five feet back from the glass, or filter the light with a sheer curtain.

The practical setup: Sill: succulents, cacti, herbs. One to two feet back: fiddle leaf fig, rubber tree, croton, dracaena. Three to five feet back: pothos, monstera, philodendron, snake plant. Six feet back and beyond: still bright enough for most tropicals, especially in summer.

East-facing windows

What it offers: Gentle direct sun for two to four hours in the morning, then bright indirect light for the rest of the day. Usually the easiest window in the whole home for houseplants.

What loves it:

  • Nearly every tropical foliage plant thrives here
  • Ferns, calatheas, marantas, alocasias
  • Peperomias, hoyas, pileas
  • Orchids (especially Phalaenopsis)
  • African violets right on the sill

What sulks:

  • Full-sun-lovers like cacti and citrus can survive here but grow slower and less flower-happy than at a south window.

The practical setup: This is the window where you don't need to overthink placement. Right on the sill, one foot back, three feet back — the plants are all fine. Prioritize your east window for the fussiest plants in your collection.

If you have one east-facing window, that's where the calathea goes. Full stop.

West-facing windows

What it offers: Bright indirect light in the morning, direct hot afternoon sun. West light is more intense than east light because the afternoon air is warmer and drier.

What loves it:

  • Bird of paradise
  • Rubber trees, dracaenas
  • Snake plants, ZZ plants at any distance
  • Succulents on the sill
  • Most trailing plants (pothos, philodendron) two feet back

What suffers:

  • Calatheas, marantas, ferns — the afternoon heat is too much. Leaves crisp along the edges. Move them into a different room, or diffuse the light with a sheer curtain from 2 p.m. onward.

The practical setup: Sill: succulents, herbs. One to two feet back: snake plant, rubber tree, dracaena, hoya, jade. Three to five feet back: pothos, philodendron, monstera, spider plant. Six feet back: still usable for medium-light plants.

The heat matters as much as the light. A west window against a radiator or in a room without air movement will dry plants out fast in summer.

North-facing windows (Northern Hemisphere)

What it offers: Consistent, soft, indirect light for most of the year. Never direct sun. Dim in winter, workable in summer.

What loves it:

  • Snake plants, ZZ plants
  • Cast iron plant
  • Pothos (though variegated types revert to solid green)
  • Heartleaf philodendron
  • Peace lily
  • Most ferns (Boston, bird's nest)

What starves:

  • Anything that needs bright indirect light and above. Fiddle leaf figs slowly lose leaves. Monsteras stop producing fenestrations. Succulents stretch dramatically.

The practical setup: Sill: pretty much the brightest zone in the room. Put the highest-light-tolerant plants here — a peace lily, a snake plant, a maidenhair fern. One foot back: still workable for low-light survivors. Three feet back and beyond: probably too dim for anything to thrive long-term.

If a north window is your only window, keep the plant list short and honest. A grow light is an easy upgrade if you want more variety.

Windows blocked by outside objects

Real windows have real obstructions — a fire escape, a neighboring building, a big tree, a balcony overhang. All of these reduce light by more than most people realize. A south-facing window in a Brooklyn apartment can perform like a west-facing window in the suburbs.

Trust the shadow test over the compass direction. If your south window has a tall building across the street, it's not really south-facing for practical purposes.

Seasonal shift

Every window gets brighter in spring and dimmer in winter. Plants that thrive in the middle of the room in July may want to be moved one to two feet closer to the window in December, then moved back out in March. This is normal. Set a phone reminder if you'll forget.

The bottom line

South windows for sun-lovers. East windows for the fussiest tropicals. West windows for tough plants that don't mind heat. North windows for low-light survivors and grow lights. Once you know which direction each of your windows faces, half of "why is my plant unhappy" turns into "it's in the wrong window."