Troubleshooting
Long-Haired Zygopetalum problems — and how to fix them
Long-Haired Zygopetalum (Zygopetalum crinitum) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Fungal leaf spotting
Brown or black spots on leaves are a hallmark Zygopetalum complaint caused by Colletotrichum or Cercospora fungi, exacerbated by poor air movement. Improve ventilation, avoid wetting foliage, and treat with a copper-based fungicide.
Fluoride/salt tip burn
Brown leaf tips indicate fluoride toxicity or salt build-up from tap water or over-fertilising. Switch to rain or RO water and flush the medium with plain water monthly.
Root rot
Overwatering in cold conditions quickly causes root rot. Ensure temperatures stay above 10°C during winter rest and allow the medium to dry more between waterings in low-light months.
Prevent long-haired zygopetalum problems before they start
Most long-haired zygopetalum issues are care-mismatch, not bad luck. Dial in the basics:
Looking for long-haired zygopetalum in general rather than its problems? Read the full long-haired zygopetalum care guide — light, water, soil and feeding.
Long-Haired Zygopetalum problems — FAQ
Why is my long-haired zygopetalum fungal leaf spotting?
Brown or black spots on leaves are a hallmark Zygopetalum complaint caused by Colletotrichum or Cercospora fungi, exacerbated by poor air movement. Improve ventilation, avoid wetting foliage, and treat with a copper-based fungicide.
Why is my long-haired zygopetalum fluoride/salt tip burn?
Brown leaf tips indicate fluoride toxicity or salt build-up from tap water or over-fertilising. Switch to rain or RO water and flush the medium with plain water monthly.
Why is my long-haired zygopetalum root rot?
Overwatering in cold conditions quickly causes root rot. Ensure temperatures stay above 10°C during winter rest and allow the medium to dry more between waterings in low-light months.