Troubleshooting
Ridley's Hohenbergia problems — and how to fix them
Ridley's Hohenbergia (Hohenbergia ridleyi) 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.
Crown rot from stagnant tank water
Stale water in the central cup allows Fusarium and Phytophthora to develop, rotting the growing point. Flush and replace tank water monthly; use rainwater or low-fluoride water if possible.
Mealybugs at the leaf base
White waxy colonies form deep in the rosette where they are hard to reach. Treat with a cotton swab dipped in isopropyl alcohol and follow with dilute neem oil spray.
Slow or no flowering indoors
Hohenbergia requires strong light to initiate blooming. Move to the brightest available position; in stubborn cases, ethylene exposure (sealed bag with a ripe apple for 7–10 days) can trigger flowering.
Prevent ridley's hohenbergia problems before they start
Most ridley's hohenbergia issues are care-mismatch, not bad luck. Dial in the basics:
Looking for ridley's hohenbergia in general rather than its problems? Read the full ridley's hohenbergia care guide — light, water, soil and feeding.
Ridley's Hohenbergia problems — FAQ
Why is my ridley's hohenbergia crown rot from stagnant tank water?
Stale water in the central cup allows Fusarium and Phytophthora to develop, rotting the growing point. Flush and replace tank water monthly; use rainwater or low-fluoride water if possible.
Why is my ridley's hohenbergia mealybugs at the leaf base?
White waxy colonies form deep in the rosette where they are hard to reach. Treat with a cotton swab dipped in isopropyl alcohol and follow with dilute neem oil spray.
Why is my ridley's hohenbergia slow or no flowering indoors?
Hohenbergia requires strong light to initiate blooming. Move to the brightest available position; in stubborn cases, ethylene exposure (sealed bag with a ripe apple for 7–10 days) can trigger flowering.