Where to Put Your Plants: A Simple Light Guide

Most houseplant problems start with light, not water. Before choosing a spot for a plant, look at two things: which direction the nearest window faces, and how far from it the plant will sit. Then try a simple test in the middle of the day. If the spot is bright enough to read a book comfortably and your hand casts a soft shadow, that is medium to bright light. If your hand casts a sharp, dark-edged shadow, that is direct sun. If you would turn on a lamp to read, that is low light.

Window direction matters because it decides how much sun comes in. Kuwait is in the Northern Hemisphere, so south-facing windows get the most sun and north-facing windows the least. Horticulturists put numbers on this using a unit called a foot-candle. Low light, around 75 foot-candles, is several feet from a north window, 3–10 feet (about 1–3 metres) from an east or west window, or 15–20 feet (about 4.5–6 metres) from a south window. Medium light, around 150, is right in front of a north window, a few feet from an east or west window, or 3–10 feet from a south window. Bright light, around 300, is right in front of an east or west window, or up to 5 feet (about 1.5 metres) from a south window. Direct light, around 1,500, is right in front of a south-facing window. You do not need a light meter — the distances and the shadow test are enough.

Different plants want different levels. Low-light-tolerant plants — pothos, ZZ plant, snake plant, cast iron plant — can live in dim corners or several feet from any window. Bright-indirect lovers — monstera, most philodendrons, calathea, and most tropical foliage plants — want to be near a window but out of direct hot midday sun, especially Kuwait's harsh summer sun through glass. Succulents and cacti want the brightest, most direct spot in the home. A plant will also tell you when the light is wrong: stems stretching toward the window, pale leaves, or small new leaves with long gaps between them all mean it needs more light. If you are not sure what a struggling plant is telling you, you can check it with NABAT's Plant Doctor tool.

When the only available spot tests as low or medium light, or a plant keeps stretching and fading despite a decent window, a grow light solves the problem — NABAT carries them. A full-spectrum white light suits most houseplants at any stage. A blue-leaning light suits leafy, non-flowering plants, and a red-leaning light helps flowering plants bud and stay compact. Run it 12–14 hours a day for foliage plants, or 14–16 hours for flowering ones, and use a cheap plug timer so the hours stay consistent.

Do

• Put pothos, ZZ plant, snake plant, or cast iron plant in the dim corners.
• Keep monstera, philodendron, calathea, and other tropical foliage near a window but out of direct midday sun.
• Give succulents and cacti the brightest, sunniest spot you have.
• Hang a grow light roughly 30–60 cm above foliage plants, or 15–30 cm above flowering ones.
• Put the grow light on a plug timer: 12–14 hours a day for foliage plants, 14–16 for flowering plants.
• Wipe dust off the leaves regularly — Kuwait's dust blocks part of the light before it reaches the plant.

Don't

• Don't leave a monstera or calathea in direct summer sun through glass — the leaves scorch.
• Don't place a plant in the direct draft of an AC vent.
• Don't hang a grow light too close — pale or crisped patches on the side nearest the lamp mean move it back.
• Don't ignore stretching stems and pale leaves — that is the plant asking for more light.
• Don't judge a spot by its brightest moment — check it at different times of day.

Common mistakes

The biggest mistake is choosing a spot because it suits the room, not the plant — a shelf can look perfect and still be far too dark. The second is underestimating distance: light falls off quickly as you move away from a window, so a plant that thrives right at the glass may struggle just a few metres back. Many people also blame watering for problems the light is causing, and keep adjusting water while a pale, stretched plant simply needs a brighter spot. And finally, remember that light is not fixed: the sun's angle shifts with the seasons, so a spot that works in summer may be dimmer in winter. For Kuwait's cooler months, when some plants can even move outdoors, see our separate guide.