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Description
black magic philodendron Alocasia infernalis 'Black Magic' – Foliage FactoryAlocasia infernalis Black Magic Alocasia infernalis Black Magic is a compact dark Alocasia from Borneo with glossy leaves that can look deep purple, violet black or almost black depending on the light. It stays much smaller than many upright Alocasia, with several dark leaves held close together at the base. Mature leaves are glossy and reflect light easily, while young leaves can open with a stronger metallic purple tone. Alocasia infernalis Black
Alocasia infernalis ‘Black Magic’
Alocasia infernalis ‘Black Magic’ is a compact dark Alocasia from Borneo with glossy leaves that can look deep purple, violet-black or almost black depending on the light. It stays much smaller than many upright Alocasia, with several dark leaves held close together at the base. Mature leaves are glossy and reflect light easily, while young leaves can open with a stronger metallic purple tone.
Alocasia infernalis ‘Black Magic’ is the dark cultivated form of Alocasia infernalis P.C.Boyce, a species described from Sarawak in Malaysian Borneo. It is recorded from the Kapit Division, including the Sungai Gaat area, where it grows in warm, shaded, moist to ever-wet lowland forest. In nature it is associated with deep leaf litter over clay-rich soils, so indoors it does best with warm roots, a lightly moist mix and good aeration.
Glossy dark Bornean leaves
The leaves are peltate, which means the petiole attaches into the blade rather than at the edge. Each blade is ovate to triangular, smooth-edged and glossy, with a pointed tip and a deep purple surface on both sides. The species can reach around 55 cm tall, with leaf blades often around 15 cm long and sometimes larger on mature plants.
Growth stays compact. Several leaves can sit close together on slender petioles, forming a compact base. The leaves are thinner than those of heavy, raised-textured Alocasia, so dry air, handling marks and pests show quickly on the surface.
Care for Alocasia infernalis ‘Black Magic’
- Light: Bright indirect light or soft filtered light suits this shade-adapted species. Indoors, steady brightness helps new leaves firm up and keeps the roots active.
- Watering: Water once the upper layer has started to dry and the pot feels lighter. The mix should stay lightly moist, with fresh air returning around the lower roots between waterings.
- Substrate: Use a fine-to-medium airy aroid mix with bark, coco husk, perlite, pumice or similar mineral aeration.
- Temperature: Keep it away from cold shelves and windowsills after watering, because chilled wet roots recover slowly.
- Humidity: Raised humidity helps the thin, glossy leaves expand with fewer crisp edges. A warm cabinet or vitrine can suit this plant if airflow is gentle.
- Feeding: Use light, diluted fertiliser while new leaves are forming. A compact root system does best with gentle feeding.
- Pot size: Keep the pot close to the root mass. A smaller, well-draining container gives better control over moisture.
Growth, ageing leaves and common problems
Alocasia infernalis may slow down in darker months. During a quiet phase, a firm base and stable older leaves are normal. Reduce watering according to pot drying and wait for active growth before dividing or repotting.
Watch the leaves closely because dark surfaces can hide early problems.
- Crisp edges: Dry air, heat load or uneven moisture are the usual causes.
- Yellow leaves: Start with lower mix moisture and root warmth.
- Soft petioles: Root stress often begins below the substrate.
- Dull leaf surface: Dust, hard-water residue and spider mites can all reduce the glossy finish.
- Small new leaves: Transport, weak roots, low warmth or old substrate can reduce leaf size for one cycle.
Once a leaf has fully yellowed, remove it cleanly at the base. Healthy dark leaves should stay in place, even with small marks, because each leaf helps feed the compact plant. Firm offsets or corms can be separated during active growth.
Mature plants can produce paired inflorescences with a spathe and spadix, followed by orange to red berries. Indoors, flowering is occasional; the plant usually keeps its dark leaves through active growth.
Alocasia infernalis contains insoluble calcium oxalate crystals. Choose a spot where pets and children cannot reach the leaves or cut plant parts. The species name infernalis comes from Latin and refers to the very dark purple-black mature foliage.
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