Rose Black Spot
Rose black spot makes dark lesions with feathery edges, yellow tissue, and premature leaf drop. Confirm the pattern, preserve useful…
Plant Diagnosis
Plant Problems
Start with the symptom you can see. Compare likely causes before changing water, fertilizer, light, or treatment.
Triage First
Observe before you treat
A useful diagnosis starts with location, timing, and the pattern of damage.
1
Locate the damage
Check whether symptoms begin on old leaves, new growth, roots, or one side of the plant.
2
Check recent changes
Note weather, watering, repotting, feeding, pruning, and any new treatment.
3
Compare evidence
Look for insects, residue, soft tissue, dry edges, odor, and soil moisture.
Problem Library
Search by visible symptom
85 matching guides
Search and filter problems
Search checks problem names, descriptions, and summaries. Plant group uses the category saved on each problem; sorting uses the update date or problem name.
Rose Powdery Mildew
Rose powdery mildew forms white-to-gray surface growth on leaves, young shoots, sepals, and buds. Confirm the coating, measure…
Sedum Leggy Growth
Leggy Sedum needs a closer look before it needs pruning. Pale stems with widening gaps between leaves point to low-light stretch…
Sedum Overwatering
A wet pot does not always mean an overwatered Sedum has rotted. Use leaf texture, crown firmness, roots, and the way water leaves the…
Snake Plant Brown Tips
A brown tip on Snake Plant is dead tissue left by an earlier stress, but the shape and texture show whether the cause is still active…
Squash Vine Borer on Zucchini
A zucchini vine that wilts in the morning and leaks moist greenish or orange sawdust-like frass from a lower stem may contain squash…
After Diagnosis
Help the plant recover
Water
Correct moisture without swinging too far
Use the plant and soil condition to set the next watering.
PestsChoose the least disruptive control
Match treatment to a confirmed pest and its life stage.
NutritionFeed only when growth can use it
Rule out root and moisture problems before adding fertilizer.