A leaf that’s suddenly pale, bleached, or blotchy on one side — or has gone crisp and tan in a patch rather than browning evenly at the tip — is usually leaf scorch, the plant equivalent of a sunburn. It’s easy to mistake for a watering problem or a fungal issue, but scorch has a distinctive pattern once you know what to look for, and the fix has nothing to do with your watering routine.

What it actually looks like

Scorch shows up as either bleached, faded, almost washed-out patches, or crispy, dry, tan-to-brown dead tissue, and it’s almost always concentrated on the side of the leaf that faces the light source — not scattered randomly and not confined to the tip or edges. On thinner or more light-sensitive leaves you’ll often see the damage form a rough silhouette of whatever light was hitting it directly, sometimes with a sharp line between healthy green tissue and damaged tissue.

This is a different pattern from other common browning problems, and telling them apart matters because the fixes are completely different:

• Scattered brown spots across the middle of a leaf point to fungal or bacterial infection, fertilizer burn, or pest feeding damage — see why does my houseplant have brown spots on its leaves for how to tell those apart from scorch.
• Browning that starts at the tips or along the outer edge, especially if it’s crisp and uniform around the whole leaf margin, is usually a watering, humidity, or water-quality issue rather than sun damage — that’s covered in why are my houseplants’ leaves turning brown.
• Leaf scorch specifically tracks with light exposure: it’s worst on the side of the plant or leaf facing the sun, it appears relatively quickly after a change in light exposure, and leaves on the shaded side of the same plant are often untouched.

Which plants are most prone to it

Scorch happens most often to plants that evolved for filtered or low light and simply aren’t built to handle direct sun on their leaf tissue — calathea, prayer plants, ferns, pothos, and other understory species are classic candidates. It’s not that these plants can never tolerate brighter light, it’s that their leaves haven’t built up any tolerance and direct sun overwhelms them fast, sometimes within a single afternoon. Thin, soft, or variegated leaves tend to scorch faster than thick, waxy, or fully green ones, since variegated sections in particular often lack the chlorophyll needed to process intense light safely.

Why it usually happens right after a move

Scorch rarely shows up on a plant that’s been sitting in the same spot for months — it’s almost always tied to a change. The two most common triggers are moving a plant outdoors for the summer and putting it too close to a bright window indoors. See moving houseplants outdoors for summer for why outdoor light, even in a spot that looks shady, is dramatically more intense than anything most plants get indoors. Indoors, the culprit is often a plant that was fine in a north- or east-facing spot getting relocated to an unobstructed south- or west-facing window, or a nearby tree or building being removed and suddenly letting far more direct sun through. See which window direction is best for houseplants for how exposure differs by orientation and time of day.

How to acclimate a plant instead of scorching it

The fix isn’t to avoid brighter light altogether — most plants that scorch would actually do fine in more light long-term, they just needed to get there gradually. Increase exposure over a couple of weeks instead of days: a few extra minutes of direct sun at a time, or a spot a little further back from the window at first, moving closer as the leaves adjust. See how to acclimate a new houseplant for a fuller walkthrough of this process, which applies just as much to an established plant you’re moving to more light as it does to a new one coming home from the nursery.

Scorched tissue won’t recover

Once a patch of leaf has scorched, that tissue is dead — it won’t green back up, fade back to normal, or heal over time, no matter what you change afterward. The goal at that point is just to stop further damage: move the plant back or ease off the light source, and let new growth come in adjusted to whatever light level you settle on. You can trim off badly scorched leaves for appearance if you want, but it isn’t necessary for the plant’s health, since the damaged tissue itself isn’t spreading or causing ongoing harm.