Problem-specific reference photo
under review
Problem-specific reference photo under reviewunder review
Light & Temperature · Plant health field guide
Heat or cold injury
Temperature extremes and drafts can damage cells rapidly.
WatchPossible cause—not a diagnosis. Compare the visible signs, plant identity, and growing conditions before treating.
Signs you may notice
- collapsed tissue
- dark patches
- bleached areas
- sudden leaf drop
Safe first checks
- Review vents, windows, transport, heater exposure, and the timing of the first symptoms.
- Photograph the affected area in clear natural light.
- Review recent changes in light, temperature, water, feeding, or location.
- Change one likely cause at a time and record the result.
Can look similar to
Overlapping symptoms are common. Compare these alternatives before choosing a treatment.
- sunburn
- overwatering
- bacterial soft rot
What to avoid
Do not make several care changes at once; that makes the response harder to interpret.
Record and follow up
Photograph the same area again and record one change at a time. Compare new growth and whether the symptom spreads, stabilizes, or improves.
Seek qualified local help when damage is severe, rapidly spreading, or may involve a regulated pest or disease.
Compare nearby possibilities
