Troubleshooting
Showy Sinningia problems — and how to fix them
Showy Sinningia (Sinningia conspicua) 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 and stem rot
Water that pools at the crown rots the soft stem tissue rapidly; always water at the soil margin, not over the rosette, and ensure the pot drains freely after every watering.
Vine weevil grubs attacking tubers
White grubs of the vine weevil (Otiorhynchus sulcatus) can hollow out tubers over winter; apply a biological nematode drench (Steinernema kraussei) in late summer or early autumn as a preventive measure.
Prevent showy sinningia problems before they start
Most showy sinningia issues are care-mismatch, not bad luck. Dial in the basics:
Showy Sinningia problems — FAQ
Why is my showy sinningia crown and stem rot?
Water that pools at the crown rots the soft stem tissue rapidly; always water at the soil margin, not over the rosette, and ensure the pot drains freely after every watering.
Why is my showy sinningia vine weevil grubs attacking tubers?
White grubs of the vine weevil (Otiorhynchus sulcatus) can hollow out tubers over winter; apply a biological nematode drench (Steinernema kraussei) in late summer or early autumn as a preventive measure.