Why are your plant’s leaves turning pale or white?

Pale or bleached leaves can mean too much sun, too little light, tiny pests feeding or a shortage of nutrients. Where the color fades tells you which. Washed-out patches that appear soon after a move into brighter light point to sunburn. An evenly pale plant with weak new growth points to low light. Fine pale speckles mean it’s time to check under the leaves for mites.

Updated 13 October 2026

Where on the plant is the color fading?

Start with the pattern of the fading. Look at which leaves changed, which side of the plant they face and what happened in the weeks before. If the leaf has a white coating rather than faded color, read about white powder on leaves instead.

Did the plant just move somewhere brighter?

If the pale patches appeared soon after a move, sunburn is the likely cause. Strong sun and heat break down the chlorophyll in a leaf, the University of Maryland Extension says, and the damage shows as “pale, bleached or faded areas.” Those areas eventually turn brown and brittle. Maryland Extension adds that the damage is worse when strong sun meets dry soil.

The fix is a slower change. The University of Minnesota Extension advises moving plants closer to windows gradually over one to two weeks, especially toward south- or west-facing light. It warns that a quick jump into bright sun can scorch shade-loving plants, and that pale patches or crispy edges mean the move is happening too fast. Plants going outside for the summer need the same care. Maryland Extension says plants adapted to low light can sunburn when moved straight outdoors without a hardening-off period.

Once a patch has turned brown, the guide to when bleached patches turn brown helps you sort sun damage from other spots.

Could it be too little light instead?

Yes, if the whole plant is pale and growing weakly. Iowa State University Extension and Outreach says that when growth is “pale, spindly, or slow,” light levels may be too low. Minnesota Extension notes that plants short of light make less chlorophyll and can turn pale green, then yellow, then white. Light is lowest in winter.

Don’t reach for fertilizer here. Iowa State explains that more fertilizer means more growth, and when the light can’t support that growth, the result is spindly or weak. Give the plant more light first. The guide to how much light your plant needs shows how to judge a window, and long, stretched stems have their own guide to leggy growth.

How do you check for mites or thrips?

Use white paper and a magnifier. The University of California Statewide Integrated Pest Management Program (UC IPM) says spider mite damage often first appears as “a stippling of light dots,” sometimes with a bronze cast. Shake a few leaves over a white sheet of paper. Mites show up as tiny dots that move. UC IPM adds that damage is usually worse when the plant is short of water.

Thrips leave stippling, discolored flecks or a silvery surface, according to UC IPM, usually with black, varnish-like specks of excrement. They feed hidden in buds and shoot tips, so shake those over the paper too.

Whatever you find, UC IPM’s rule is to be sure the pests are present before you treat. Mites are sometimes gone by the time the damage shows.

For a second opinion on sunburn versus mites, try Plant Doctor, an AI plant diagnosis app for iPhone. From three photos it suggests the species, then gives the most likely cause and the evidence behind it.

When is pale growth a feeding problem?

Check roots and watering first. Growing conditions such as drought, waterlogging or too little light can look like a deficiency, the Royal Horticultural Society (RHS) notes. Any root stress, from too much or too little water, can also bring on a real one.

• Older leaves first: the RHS says a nitrogen shortage gives spindly, stunted plants with pale yellow leaves, starting with the older ones. Potting mix can run short after a few months of use.
• Newest leaves first: the RHS says iron deficiency affects the youngest leaves most, with yellowing between the veins. Maryland Extension calls this the most common nutrient deficiency in indoor plants and says to look for a product labeled for houseplants or indoor plants.
• Feed only when the plant is actively growing, Iowa State advises, and follow the product label.

Pale leaf questions