Troubleshooting
Grandidier's Uncarina problems — and how to fix them
Grandidier's Uncarina (Uncarina grandidieri) 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 and caudex rot
The most common cause of death in cultivation — almost always due to watering during dormancy or poorly drained soil. Ensure complete dryness from October to March and use a very gritty substrate.
Failure to flower
Caused by insufficient light or excessive nitrogen feeding. Move to a sunnier position and switch to a low-nitrogen, high-potash fertiliser to encourage bud set.
Hooked seed pods damaging pets
Ripe fruit bear strong grapnel-like spines that embed in fur and skin. Collect and dispose of seed pods before they dry and disperse if pets have access to the plant.
Prevent grandidier's uncarina problems before they start
Most grandidier's uncarina issues are care-mismatch, not bad luck. Dial in the basics:
Grandidier's Uncarina problems — FAQ
Why is my grandidier's uncarina root and caudex rot?
The most common cause of death in cultivation — almost always due to watering during dormancy or poorly drained soil. Ensure complete dryness from October to March and use a very gritty substrate.
Why is my grandidier's uncarina failure to flower?
Caused by insufficient light or excessive nitrogen feeding. Move to a sunnier position and switch to a low-nitrogen, high-potash fertiliser to encourage bud set.
Why is my grandidier's uncarina hooked seed pods damaging pets?
Ripe fruit bear strong grapnel-like spines that embed in fur and skin. Collect and dispose of seed pods before they dry and disperse if pets have access to the plant.