Root Cause Garden

Why are my plant leaves turning brown?

By , a nature lover who checks every guide against university extension sources.

For houseplants and garden plants

Last checked against 11 university extension sources

Short answer

Watering problems are the most common reason plant leaves turn brown. Crisp brown tips and edges usually mean the soil dried out too much, the air is dry, or fertilizer salts have built up. Leaves that yellow and then brown while the soil stays wet point to overwatering. Outdoors, browning at the edges and between the veins after hot, dry, windy weather is leaf scorch. Brown tissue won’t turn green again, so fix the cause and watch the new leaves.

Quick check: what do you see?

Start with the row that matches your plant best, then jump to that cause for how to confirm it and fix it.

What you seeMost likely cause
Crisp brown tips or edges; the soil often dries out completely Soil drying out too much Most common
Leaves yellow, then brown, and droop while the soil is still wet Overwatering and root rot
Brown tips, with a white or gray crust on the soil or pot rim Fertilizer salts
Brown tips or edges near a heater or vent, or in dry winter air Dry air, heat and drafts
Tree or shrub leaves brown at the edges and between the veins after hot, dry, windy weather Leaf scorch (trees, shrubs and garden plants)
Scorched patches on leaves facing strong sun, or after moving a plant outside Sun scorch
Brown patches after frost, a cold spell or a cold draft Cold damage
Tips keep browning even though watering and feeding are right Fluoride or chlorine in tap water

Compare the symptoms

Illustrations, not photos: drawn to show the typical pattern of each cause. Free to reuse.

The 8 causes, and how to fix each

1. Soil drying out too much

Most common
Illustration: a yellowing leaf with a crisp brown edge, typical of a plant kept too dry.
Illustration

Signs

  • Leaf tips and edges turn brown and crisp.
  • Lower leaves can yellow, brown and die when a plant stays too dry for too long.
  • Erratic watering, very wet then very dry, causes brown edges too.

How to confirm

  • The pot feels light and the soil is dry well below the surface.
  • Roots that are rusty orange to light brown point to underwatering.

How to fix it

  1. Water thoroughly, until water runs out of the bottom of the pot.
  2. If the soil has shrunk away from the sides of the pot, water it several times to wet it again.
  3. Check the soil more often, and adjust your watering to what your plant needs.

Based on: Clemson Cooperative Extension [1], University of Illinois Extension [4], Clemson Cooperative Extension [7], University of Maryland Extension [2]

2. Overwatering and root rot

Common
Illustration: a yellowing leaf with a darkened tip, typical of overwatering.
Illustration

Signs

  • Lower and inner leaves wilt or yellow first; if it goes on, leaves scorch brown and drop.
  • Yellow leaves that are left uncorrected turn brown.

How to confirm

  • The soil stays wet for days and the pot feels heavy.
  • Roots are dark brown to black and may be soft.

How to fix it

  1. Stop watering until the soil is quite dry, then water less often.
  2. Pour off water that collects in the saucer.
  3. Cut off a few rotten roots and repot in fresh, sterile potting mix. If most roots are dead, the plant is unlikely to recover.

Based on: University of Maryland Extension [2], University of Maryland Extension [3], University of Illinois Extension [4], Clemson Cooperative Extension [1]

3. Fertilizer salts

Common
Illustration: a leaf with a dark burned tip and edges, typical of fertilizer salt buildup.
Illustration

Signs

  • Brown leaf tips and edges, sometimes with burned roots.
  • A white to gray crust on the soil surface or around the rim of the pot.

How to confirm

  • You feed often or at full strength, and the crust is there. Don’t confuse the crust with fungus growing on the soil.

How to fix it

  1. Flush the pot: water heavily so water runs through and out of the drainage holes, then empty the saucer.
  2. Scrape off the crust, scrub the pot rim and top up with fresh potting mix.
  3. Feed less often and at lower strength. Repot every so often.

Based on: Clemson Cooperative Extension [1], University of Illinois Extension [4], Clemson Cooperative Extension [7], University of Wisconsin–Madison Division of Extension [10]

4. Dry air, heat and drafts

Common
Illustration: a green leaf with a dry brown tip and thin brown edges.
Illustration

Signs

  • Dry, brown tips and edges on otherwise healthy leaves.
  • Common near heaters and heating or air-conditioning vents.

How to confirm

  • The plant sits near a heat source, a vent or a cold draft, or your indoor air is very dry.

How to fix it

  1. Move the plant away from heaters, vents and drafts.
  2. For plants that like humid air, such as monstera and pothos, raise the humidity with a humidifier.

Based on: Clemson Cooperative Extension [1], University of Illinois Extension [4], University of Wisconsin–Madison Division of Extension [9], Clemson Cooperative Extension [8]

5. Leaf scorch (trees, shrubs and garden plants)

Common
Illustration: a leaf with dry brown edges and brown patches between the veins, typical of leaf scorch.
Illustration

Signs

  • Leaves brown along the edges, at the tips and between the veins. In bad cases the whole leaf browns and dries.
  • On evergreens, needles brown at the tips but may stay green at the base.
  • Common after a hot, dry summer. Maple, linden, ash, aspen, horse chestnut, elm, pine and spruce are often affected.

How to confirm

  • It follows heat, strong sun, drying wind or drought.
  • Look for anything that limits the roots: dry soil, compacted soil, a small planting area, root rot or salty soil.

How to fix it

  1. Keep the root zone watered during dry spells.
  2. Mulch the root area to help hold moisture.
  3. During drought, shelter plants from strong wind and from direct or reflected sun where you can.
  4. Plant new trees where their roots have room and the soil isn’t compacted.

Based on: Colorado State University Extension [5], Utah State University Extension [6]

6. Sun scorch

Less common
Illustration: a leaf with a bleached area and brown scorched patches, typical of too much sun.
Illustration

Signs

  • Scorched patches on the leaves that get the most sun, often after a plant moves into direct sun or outdoors.

How to confirm

  • The damage is on the side facing the light and started after the plant got stronger sun.

How to fix it

  1. Move the plant to bright, indirect light, out of direct sun.
  2. When moving houseplants outside for summer, get them used to brighter light gradually.

Based on: Clemson Cooperative Extension [7], University of Wisconsin–Madison Division of Extension [9], University of Illinois Extension [4]

7. Cold damage

Less common
Illustration: a leaf with scattered brown patches near the center, typical of cold damage.
Illustration

Signs

  • Brown patches, often in the middle of the leaf, after cold or a sudden drop from very warm to cooler air.
  • Brown leaf edges after cold drafts. Frost can kill tender plants such as monstera and aloe.

How to confirm

  • The plant was somewhere cold, in a cold draft, or outdoors on a frosty night.

How to fix it

  1. Move the plant somewhere warmer and away from drafts.
  2. Bring tender plants indoors before frost; most aloes need protection from long spells below 50 °F.

Based on: University of Wisconsin–Madison Division of Extension [10], University of Illinois Extension [4], University of Wisconsin–Madison Division of Extension [9], University of Wisconsin–Madison Division of Extension [11]

8. Fluoride or chlorine in tap water

Less common
Illustration: a green leaf with a dry brown tip.
Illustration

Signs

  • Brown tips that keep coming back even though watering, feeding and humidity are all right.

How to confirm

  • You use tap water, and other causes have been ruled out. Some houseplants are sensitive to fluoride or chlorine.

How to fix it

  1. Use rainwater, or tap water that has stood at room temperature for 24 hours.

Based on: Clemson Cooperative Extension [1]

Brown leaves on a specific plant

Each plant has its own common causes. If yours is listed, its guide goes into more detail.

Look-alikes: what it might not be

Brown spots are a different problem

Separate brown spots with yellow edges, rings or a yellow halo are usually a fungal or bacterial leaf spot, not dry tips or scorch. See our guide to brown spots on plant leaves. [1]

Some leaves are meant to be red or bronze

Not every reddish or brownish leaf is damaged. Small aloes, for example, come in green, red, pink and lavender, and bright light brings out their leaf color. [11]

How to prevent it

Questions people ask

Why are the tips of my plant’s leaves turning brown?

Brown tips usually come from watering problems, hot, dry air or a buildup of fertilizer salts. A white crust on the soil points to salts. Insect feeding and, in some plants, fluoride or chlorine in tap water can brown tips too. [1, 4]

Why are my plant’s leaves turning yellow and brown?

Yellow leaves often turn brown if the cause isn’t fixed. Lower leaves that yellow, brown and die usually mean the plant is short of nitrogen (especially in a crowded pot) or stayed too dry for too long. Overwatering also yellows leaves before they scorch and drop. [3, 1, 2]

What causes brown dots or patches on leaves?

Small brown dots with yellow edges are usually a fungal leaf spot, and water-soaked dots with a yellow halo a bacterial one. Larger brown patches point to sun scorch, cold damage or, on trees and shrubs, leaf scorch between the veins. [1, 10, 5, 7]

Why is my aloe plant turning reddish brown?

Some aloes are naturally tinged red, pink or lavender, and bright light brings out that color. If the leaves are turning brown, check for cold and wet soil: most aloes need protection from long spells below 50 °F and from frost, and their roots should never stay wet. Let the soil dry between waterings. [11, 10, 1]

Will brown leaves turn green again?

No. Browned tissue is dead, and leaf scorch can’t be reversed. Fix the cause, and the new leaves should come in healthy. [5]

Sources

Facts on this page were checked against these sources on November 10, 2026. The wording and illustrations are our own.

  1. Houseplant Diseases & Disorders (HGIC 2251). Clemson Cooperative Extension, Home & Garden Information Center. Updated Feb 28, 2025.
  2. Overwatered Indoor Plants. University of Maryland Extension. Updated Mar 13, 2023.
  3. Yellowing Leaves on Indoor Plants. University of Maryland Extension. Updated Mar 13, 2023.
  4. Keep houseplants happy with simple solutions. University of Illinois Extension. Feb 22, 2021.
  5. Leaf Scorch of Trees and Shrubs (2133). Colorado State University Extension, PlantTalk Colorado.
  6. Leaf Scorch. Utah State University Extension, Ornamental Pest Guide.
  7. Peace Lily (HGIC 1512). Clemson Cooperative Extension, Home & Garden Information Center. Revised Feb 15, 2022.
  8. How to Grow Pothos Indoors (Epipremnum spp.): Care, Cultivars, and Common Problems (HGIC 1568). Clemson Cooperative Extension, Home & Garden Information Center. Published Jan 30, 2026.
  9. Swiss-Cheese Plant, Monstera deliciosa. University of Wisconsin–Madison Division of Extension, Wisconsin Horticulture. Revised Oct 2026.
  10. Pothos, Epipremnum aureum. University of Wisconsin–Madison Division of Extension, Wisconsin Horticulture.
  11. Small Aloes – Interesting, Colorful, and Easy Succulents. University of Wisconsin–Madison Division of Extension, Wisconsin Horticulture. Revised Jun 2026.

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