Troubleshooting
Fuller's Living Stone problems — and how to fix them
Fuller's Living Stone (Lithops fulleri) 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.
Overwatering / rot
The most common cause of death. Water only during the correct seasonal window (autumn growth flush) and withhold completely in summer and mid-winter when the new lobe pair is forming.
Etiolation (stretching)
Occurs when light is insufficient. Move to the sunniest windowsill available or supplement with a full-spectrum grow light for at least 12 hours daily.
Failure to split
If the old lobe pair does not shrivel to allow the new pair to emerge, it usually means watering continued too long in winter. Stop watering and allow the old leaves to dry out completely.
Mealybugs
Check between the lobes for cottony white residue. Treat with a cotton swab dipped in isopropyl alcohol or a dilute systemic insecticide drench.
Sunscorch
Newly purchased plants or those moved suddenly to full sun can scorch. Acclimatise gradually over 1-2 weeks.
Prevent fuller's living stone problems before they start
Most fuller's living stone issues are care-mismatch, not bad luck. Dial in the basics:
Fuller's Living Stone problems — FAQ
Why is my fuller's living stone overwatering / rot?
The most common cause of death. Water only during the correct seasonal window (autumn growth flush) and withhold completely in summer and mid-winter when the new lobe pair is forming.
Why is my fuller's living stone etiolation (stretching)?
Occurs when light is insufficient. Move to the sunniest windowsill available or supplement with a full-spectrum grow light for at least 12 hours daily.
Why is my fuller's living stone failure to split?
If the old lobe pair does not shrivel to allow the new pair to emerge, it usually means watering continued too long in winter. Stop watering and allow the old leaves to dry out completely.
Why is my fuller's living stone mealybugs?
Check between the lobes for cottony white residue. Treat with a cotton swab dipped in isopropyl alcohol or a dilute systemic insecticide drench.
Why is my fuller's living stone sunscorch?
Newly purchased plants or those moved suddenly to full sun can scorch. Acclimatise gradually over 1-2 weeks.