Troubleshooting
Crassula Columnaris problems — and how to fix them
Crassula Columnaris (Crassula columnaris) 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.
Rot from overwatering
The main cause of failure. Wet or organic soil, especially during summer dormancy, rots the column from the base. Use a mostly mineral mix, water only when bone dry, and water at the base.
Column loosening and stretching
Too little light pulls the stacked leaves apart and spoils the neat tower. Move it to the brightest possible spot with direct sun to keep the form tight.
Rosette dying after flowering
This is normal monocarpic behaviour, not a problem: the flowered head dies once it sets seed. Collect seed or pot up any offsets to carry the plant on.
Mealybugs
Cottony mealybugs and root mealybugs hide among the packed leaves and roots. Treat promptly with rubbing alcohol or insecticidal soap and check the root ball when repotting.
Prevent crassula columnaris problems before they start
Most crassula columnaris issues are care-mismatch, not bad luck. Dial in the basics:
Looking for crassula columnaris in general rather than its problems? Read the full crassula columnaris care guide — light, water, soil and feeding.
Crassula Columnaris problems — FAQ
Why is my crassula columnaris rot from overwatering?
The main cause of failure. Wet or organic soil, especially during summer dormancy, rots the column from the base. Use a mostly mineral mix, water only when bone dry, and water at the base.
Why is my crassula columnaris column loosening and stretching?
Too little light pulls the stacked leaves apart and spoils the neat tower. Move it to the brightest possible spot with direct sun to keep the form tight.
Why is my crassula columnaris rosette dying after flowering?
This is normal monocarpic behaviour, not a problem: the flowered head dies once it sets seed. Collect seed or pot up any offsets to carry the plant on.
Why is my crassula columnaris mealybugs?
Cottony mealybugs and root mealybugs hide among the packed leaves and roots. Treat promptly with rubbing alcohol or insecticidal soap and check the root ball when repotting.