Troubleshooting
Davis's Masdevallia problems — and how to fix them
Davis's Masdevallia (Masdevallia davisii) 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.
Heat stress
The most common cause of failure. Temperatures above 22°C cause rapid deterioration. Air conditioning in summer is usually necessary.
Crown rot
Water pooling in the crown causes fungal rot. Water at the pot base and always maintain airflow over the plant.
Root rot from compacted medium
Sphagnum degrades and becomes anaerobic within a year. Repot annually into fresh medium.
Bud blast
Environmental instability — especially sudden warmth — causes buds to drop. Keep conditions stable and cool.
Spider mites
Fine webbing in warm, dry air. Raise humidity, improve airflow, and treat with insecticidal soap.
Prevent davis's masdevallia problems before they start
Most davis's masdevallia issues are care-mismatch, not bad luck. Dial in the basics:
Davis's Masdevallia problems — FAQ
Why is my davis's masdevallia heat stress?
The most common cause of failure. Temperatures above 22°C cause rapid deterioration. Air conditioning in summer is usually necessary.
Why is my davis's masdevallia crown rot?
Water pooling in the crown causes fungal rot. Water at the pot base and always maintain airflow over the plant.
Why is my davis's masdevallia root rot from compacted medium?
Sphagnum degrades and becomes anaerobic within a year. Repot annually into fresh medium.
Why is my davis's masdevallia bud blast?
Environmental instability — especially sudden warmth — causes buds to drop. Keep conditions stable and cool.
Why is my davis's masdevallia spider mites?
Fine webbing in warm, dry air. Raise humidity, improve airflow, and treat with insecticidal soap.