Troubleshooting
Bertero's Guzmania problems — and how to fix them
Bertero's Guzmania (Guzmania berteroniana) is generally low-drama, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Crown rot from cold water or cold draughts
Cold water sitting in the cup combined with low temperatures accelerates crown rot; always use tepid water and keep the plant away from cold windowpane draughts in winter.
Spider mites in low humidity
Fine webbing on leaf undersides indicates spider mite infestation, which intensifies when humidity drops below 40%; raise humidity, rinse foliage regularly, and apply neem oil or insecticidal soap.
Prevent bertero's guzmania problems before they start
Most bertero's guzmania issues are care-mismatch, not bad luck. Dial in the basics:
Bertero's Guzmania problems — FAQ
Why is my bertero's guzmania crown rot from cold water or cold draughts?
Cold water sitting in the cup combined with low temperatures accelerates crown rot; always use tepid water and keep the plant away from cold windowpane draughts in winter.
Why is my bertero's guzmania spider mites in low humidity?
Fine webbing on leaf undersides indicates spider mite infestation, which intensifies when humidity drops below 40%; raise humidity, rinse foliage regularly, and apply neem oil or insecticidal soap.