Basil Problems: Causes & Quick Fixes
Quick answer
Basil is prone to 16 common issues - each link below is a plant-specific fix guide.

Basil problems
Use the guides below to diagnose and fix common issues on Basil. Each problem page explains why it happens on this species and what to do first.
Or use our problem diagnosis tool to narrow down symptoms.
Common problems on Basil
Root Rot
MediumLikely cause: Overwatering in cool or dim conditions causing damping off (fungal stem collapse at soil level).
Quick fix: Improve drainage, reduce watering, ensure 6+ hours sun, good air circulation.
Full fix guide →Leggy Growth
MediumLikely cause: Insufficient light causing weak, stretched growth with poor flavour.
Quick fix: Move to full sun position - 6+ hours daily. Pinch back leggy stems.
Full fix guide →Yellow Leaves
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Brown Tips
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Overwatering
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Underwatering
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Spider Mites
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Mealybugs
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Aphids
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Slow Growth
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Wilting
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Drooping Leaves
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Low Humidity
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Not Enough Light
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Fungus Gnats
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →Mold on Soil
MediumLikely cause: Common on this plant type; confirm with recent watering, light, and root checks.
Quick fix: Inspect the plant and correct the most likely care stressor before stacking treatments.
Full fix guide →