Problem library
Something is wrong with your plant. Start with the symptom.
Most asked this season
The plant problems gardeners are searching for most right now.
Powdery mildew (1,680 plants)
A white dusty film in humid, still air — usually a spacing and airflow problem before it is a spray problem.
Root rot (4,330 plants)
The most common killer of potted plants, and almost always overwatering plus a pot that will not drain.
Mealybugs (1,588 plants)
White cottony clusters tucked into leaf joints. They spread fast between touching plants.
Spider mites (1,403 plants)
Fine webbing and stippled leaves, thriving in dry indoor air — the pest that dry winter rooms breed.
Aphids (1,576 plants)
Clustered on soft new growth and flower buds, leaving sticky honeydew behind.
Scale insects (1,121 plants)
Immobile brown bumps along stems that look like part of the plant until they multiply.
Failure to flower (522 plants)
Usually too little light, too much nitrogen, or pruning at the wrong time of year.
Leaf scorch & brown tips (1,552 plants)
Sun, dry air, or salt build-up from feeding — the plant is losing water faster than it takes it up.
Yellowing leaves (1,317 plants)
The most over-diagnosed symptom on the internet: far more often watering than feeding.
Not sure what you are looking at?
- Diagnose by symptom — start from what you can see
- How often to water — the root of most problems
- Humidity requirements — brown tips and crisp edges