Troubleshooting
Regel's Nidularium problems — and how to fix them
Regel's Nidularium (Nidularium regelioides) 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.
Root rot
Excessive moisture in a dense or poorly draining medium leads to basal rot. Use an open, bark-based mix and ensure the pot has ample drainage holes. If rot is detected, remove the plant, trim affected roots, dust with sulphur or activated charcoal, and repot in fresh medium.
Mealybugs
Cottony mealybug colonies can colonise the leaf axils and cup. Isolate the plant, flush the cup, and treat with isopropyl alcohol on a swab or diluted neem oil. Repeat every 7–10 days for 3–4 cycles.
Loss of bract colour
Scarlet bracts fade to green in insufficient light. Move to a brighter (but still indirect) position. Note that bract colour also naturally diminishes after the flowering period ends; pups will colour up normally under good light.
Prevent regel's nidularium problems before they start
Most regel's nidularium issues are care-mismatch, not bad luck. Dial in the basics:
Looking for regel's nidularium in general rather than its problems? Read the full regel's nidularium care guide — light, water, soil and feeding.
Regel's Nidularium problems — FAQ
Why is my regel's nidularium root rot?
Excessive moisture in a dense or poorly draining medium leads to basal rot. Use an open, bark-based mix and ensure the pot has ample drainage holes. If rot is detected, remove the plant, trim affected roots, dust with sulphur or activated charcoal, and repot in fresh medium.
Why is my regel's nidularium mealybugs?
Cottony mealybug colonies can colonise the leaf axils and cup. Isolate the plant, flush the cup, and treat with isopropyl alcohol on a swab or diluted neem oil. Repeat every 7–10 days for 3–4 cycles.
Why is my regel's nidularium loss of bract colour?
Scarlet bracts fade to green in insufficient light. Move to a brighter (but still indirect) position. Note that bract colour also naturally diminishes after the flowering period ends; pups will colour up normally under good light.