Kentucky Bluegrass Thin Lawn
A Kentucky Bluegrass lawn is truly thin when it has fewer living crowns, visible soil, and gaps that remain after favorable growing…
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.
Leaf Spot on Black-Eyed Susan
Dark spots on Black-Eyed Susan often come from Septoria leaf spot, but angular bacterial lesions and four-lined plant bug feeding can…
Majesty Palm Brown Tips
Brown tips on a Majesty Palm usually mean the leaflet ends are losing water faster than the roots can replace it. Dry indoor air, a…
Majesty Palm Yellow Leaves
Yellow leaves on a Majesty Palm mean more when you know which frond changed first. One slowly yellowing bottom frond may be normal…
Mint Invasive Growth
Mint expands through underground rhizomes and surface runners that form new roots and shoots. Trace that living network before…
Mint Yellow Leaves
Yellow Mint leaves need three checks before any treatment. Compare old and new leaves, feel whether damaged tissue is soft or crisp…
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.