anthurium rio negro Anthurium watermaliense – Dark 'Black Anthurium' Foliage

anthurium rio negro Anthurium watermaliense – Dark 'Black Anthurium' FoliageAnthurium watermaliense Anthurium watermaliense is the accepted species behind the common names Black Anthurium and Black Prince, both used for its dark violet purple spathe. The foliage itself is glossy green, deeply lobed and held from a short, thick rooted crown. The plant can grow terrestrially or occasionally epiphytically in wet tropical habitats. In cultivation, it needs steady moisture, warm conditions and an open substrate that keeps oxygen

Anthurium watermaliense

Anthurium watermaliense is the accepted species behind the common names Black Anthurium and Black Prince, both used for its dark violet-purple spathe. The foliage itself is glossy green, deeply lobed and held from a short, thick-rooted crown.

The plant can grow terrestrially or occasionally epiphytically in wet tropical habitats. In cultivation, it needs steady moisture, warm conditions and an open substrate that keeps oxygen around the roots.

Recognising Anthurium watermaliense

• Foliage: Deeply lobed, cordate leaves with a glossy to semi-glossy upper surface.
• Inflorescence: Dark violet-purple spathe, often the reason for the Black Anthurium nickname.
• Growth habit: Short-stemmed Anthurium with thick roots and a self-standing crown.
• Cataphylls: Protective leaf sheaths can wear into fibres around the stem.
• Origin: Native from Costa Rica to Colombia in wet tropical habitats.
• Root structure: Dense roots need moisture and air rather than compact, saturated substrate.

Leaves, roots and spathe of Anthurium watermaliense

Anthurium watermaliense has lobed, glossy leaves with a paler underside and a compact stem that stays close to the pot. Mature plants can produce a dark spathe that may appear almost black in certain light, although botanically it is better described as deep violet-purple.

The thick roots need moisture and oxygen at the same time. A bark-rich aroid mix keeps the root zone open, while regular but measured watering prevents the crown from sitting in stale, saturated substrate.

Indoor care for Anthurium watermaliense

• Light: Bright filtered light keeps the leaves firm and reduces scorch risk on glossy surfaces.
• Watering: Keep the mix lightly moist, then let excess water drain fully after each watering.
• Substrate: Use an airy organic aroid mix with bark, coarse fibre and mineral structure.
• Humidity: Moderate to high humidity keeps new leaves and inflorescences from drying at the edges.
• Temperature: Warm, stable conditions are important; cold wet roots can decline quickly.
• Potting: Keep the crown slightly above the substrate surface so the short stem stays dry and ventilated.
• Feeding: Feed lightly during active growth and flush the pot occasionally to reduce salt marks on leaf edges.

Leaf, root and spathe issues on Anthurium watermaliense

• Soft yellowing leaves: Check drainage and root condition, especially if the substrate feels dense or sour.
• Brown edges: Low humidity, inconsistent watering or fertiliser salts can mark the leaf margins.
• Damaged spathe: Dry air, handling or transport can crease or dry the dark spathe.
• Pest marks: Inspect new growth, petioles and leaf undersides for thrips, mites and mealybugs.

Plant safety with Anthurium watermaliense

Keep Anthurium watermaliense away from pets and small children. Like other Anthurium species, it contains calcium oxalate crystals that can irritate the mouth, throat, skin and eyes.

Botanical notes on Anthurium watermaliense

Anthurium watermaliense was described by L.H.Bailey and Nash and published in 1914. It is an accepted Araceae species native from Costa Rica to Colombia. The genus name Anthurium refers to the tail-like spadix of the inflorescence.

Buy Anthurium watermaliense online from Foliage Factory for glossy lobed leaves and the deep violet-purple spathe behind its Black Anthurium common name.