Have you ever moved a houseplant to a brighter spot, only to find its leaves turning brown, pale or crispy a few days later?
It might seem strange, but yes—houseplants can get sunburn.
While plants need light to grow, many popular indoor species naturally grow beneath the canopy of tropical forests where they’re protected from harsh midday sunshine. Exposing them to intense direct sunlight too quickly can damage their leaves, causing unsightly scorch marks that are often mistaken for disease or watering problems.
The good news is that sunburn is usually easy to identify and, if caught early, most plants recover well.
Here’s how to spot the signs, rescue a sunburnt houseplant and prevent it from happening again.
Can Houseplants Really Get Sunburn?
Absolutely.
Just like our skin, plant leaves can be damaged by excessive sunlight.
Sunburn usually happens when a plant is suddenly moved from a lower-light position to a bright south- or west-facing windowsill without time to adjust.
The leaf tissue becomes scorched, leaving permanent damage that can’t be reversed.
Plants that are particularly prone to sunburn include:
- Monstera
- Peace Lily
- Philodendron
- Pothos
- Calathea
- Ferns
- Prayer Plants
Plants such as cacti, jade plants and aloe vera are much better adapted to direct sunshine and are far less likely to burn.
Signs Your Plant Has Too Much Sun
1. Brown, Crispy Patches
One of the clearest signs of sunburn is the appearance of dry brown patches on the leaves.
Unlike fungal diseases, these patches usually appear on the side of the plant facing the window.
The damaged tissue feels dry and papery rather than soft or mushy.
2. Bleached or Pale Leaves
Strong sunlight can bleach the green pigments inside leaves.
Instead of rich green foliage, affected leaves may become pale yellow, cream or almost white.
Unfortunately, these areas won’t regain their original colour.
3. Crispy Leaf Edges
If the edges of your leaves become dry and brittle, excessive sunlight may be the culprit.
This is especially common during hot summer afternoons when sunlight through glass becomes surprisingly intense.
4. Curling Leaves
Some plants respond to bright sunlight by curling their leaves.
This helps reduce the amount of surface area exposed to the sun and slows water loss.
If your soil is still moist but the leaves are curling, sunlight could be the problem rather than underwatering.
5. Wilting Despite Moist Soil
A sunburnt plant can sometimes look thirsty even when the compost is damp.
That’s because intense heat causes the leaves to lose moisture faster than the roots can replace it.
Before reaching for the watering can, check whether the plant is sitting in harsh direct sunlight.
Which Windows Are Most Likely to Cause Sunburn?
Not all windows provide the same amount of light.
South-facing windows receive the strongest sunshine for much of the day and are the most likely to scorch sensitive plants.
West-facing windows often become extremely hot during summer afternoons.
East-facing windows provide gentle morning sunshine that’s suitable for many houseplants.
North-facing windows receive the least direct sunlight and are often best for shade-loving species.
If you’re unsure where your plants should live, you might find my guide on Why Your Plant Is Leaning Towards the Window helpful, as it explains how plants respond to different light levels.
How to Save a Sunburnt Houseplant
The good news is that a few scorched leaves don’t usually mean your plant is dying.
Here’s how to help it recover.
Move It Gradually
Don’t move your plant into a dark corner.
Instead, place it somewhere with bright, indirect light where it can continue growing without being exposed to harsh afternoon sun.
A sheer net curtain can also soften direct sunlight without making the room feel dark.
Don’t Remove Every Damaged Leaf
Leaves with small burnt patches can still photosynthesise and provide energy for the plant.
Only remove leaves that are mostly brown, dry or dead.
Use a pair of clean, sharp pruning snips to avoid damaging healthy growth.
Water Normally
It’s tempting to overwater a stressed plant, but this often creates a second problem.
Instead, water according to your plant’s normal needs.
If you’re unsure when to water after repotting or during recovery, my guide on Should You Water a Plant After Repotting? explains how to avoid common mistakes.
Using a soil moisture meter can also help you avoid accidental overwatering while your plant recovers.
Hold Off on Fertiliser
Damaged leaves won’t recover with extra fertiliser.
Wait until your plant begins producing healthy new growth before feeding again.
Be Patient
Sunburned leaves won’t turn green again.
Instead, focus on encouraging healthy new leaves by providing the right light and consistent care.
How to Prevent Sunburn
Fortunately, preventing sunburn is simple.
- Introduce plants to brighter conditions gradually.
- Avoid placing shade-loving plants in harsh afternoon sunshine.
- Use sheer curtains to diffuse intense summer light.
- Rotate plants every few weeks for even growth.
- Learn what type of light each species prefers.
If you’ve recently repotted your plant, remember that stressed roots can make it even more sensitive to strong sunlight. My Beginner’s Guide to Repotting Houseplants explains how to minimise transplant shock and help plants settle into their new pots.
Plants That Love Full Sun
Not every houseplant needs protecting.
These species are generally much happier in bright sunshine:
- Aloe Vera
- Jade Plant
- Ponytail Palm
- Most Cacti
- String of Pearls
- Desert Rose
Even so, it’s still best to increase light levels gradually rather than moving them straight from a dark room into blazing sunshine.
Frequently Asked Questions
Can sunburnt leaves recover?
No.
Once the leaf tissue has been scorched, the damaged areas won’t return to green.
The goal is to encourage healthy new growth instead.
Should I cut off burnt leaves?
Only if they’re mostly damaged.
Leaves with small burnt patches can still photosynthesise and help support the plant.
Can houseplants get sunburn through glass?
Yes.
Sunlight passing through windows can become surprisingly intense, especially in south- and west-facing rooms during summer.
Final Thoughts
Light is essential for healthy houseplants, but more isn’t always better.
Learning to recognise the early signs of sunburn—such as crispy patches, faded leaves and curling foliage—allows you to act before serious damage occurs.
Move your plant to bright, indirect light, avoid overwatering and give it time to recover.
With a little patience, most healthy houseplants will reward you with fresh new growth before long.