Troubleshooting
Alocasia Macrorrhizos Giant Upright problems — and how to fix them
Alocasia Macrorrhizos Giant Upright (Alocasia macrorrhizos 'Giant Upright') 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 in cold, wet soil
The large rhizome rots when cold and waterlogged. Keep it warm, use a mix that drains, and cut watering back sharply over winter.
Leaf scorch
Harsh direct midday sun on the big blades causes bleaching and brown patches. Give bright filtered light and ensure the soil stays moist in strong sun.
Browning leaf edges from low humidity
Dry indoor air crisps the margins of the large leaves. Raise humidity with a humidifier or grouping, ideally grow outdoors or in a conservatory.
Spider mites and scale
Dry, stressed plants attract mites and scale on the big leaf surfaces. Inspect undersides, wipe leaves, raise humidity, and treat with insecticidal soap or neem.
Prevent alocasia macrorrhizos giant upright problems before they start
Most alocasia macrorrhizos giant upright issues are care-mismatch, not bad luck. Dial in the basics:
- Common giant taro problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Alocasia Macrorrhizos Giant Upright watering schedule
- Alocasia Macrorrhizos Giant Upright light requirements
- Best soil mix for alocasia macrorrhizos giant upright
- Alocasia Macrorrhizos Giant Upright temperature & humidity
- Full alocasia macrorrhizos giant upright care guide
Looking for the species overview? Alocasia — the full care guide.
Alocasia Macrorrhizos Giant Upright problems — FAQ
Why is my alocasia macrorrhizos giant upright root rot in cold, wet soil?
The large rhizome rots when cold and waterlogged. Keep it warm, use a mix that drains, and cut watering back sharply over winter.
Why is my alocasia macrorrhizos giant upright leaf scorch?
Harsh direct midday sun on the big blades causes bleaching and brown patches. Give bright filtered light and ensure the soil stays moist in strong sun.
Why is my alocasia macrorrhizos giant upright browning leaf edges from low humidity?
Dry indoor air crisps the margins of the large leaves. Raise humidity with a humidifier or grouping, ideally grow outdoors or in a conservatory.
Why is my alocasia macrorrhizos giant upright spider mites and scale?
Dry, stressed plants attract mites and scale on the big leaf surfaces. Inspect undersides, wipe leaves, raise humidity, and treat with insecticidal soap or neem.