Anthurium jenmanii ‘Green Jade’

The species background of Anthurium jenmanii ‘Green Jade’

Anthurium jenmanii ranges from Trinidad through Venezuela and the Guianas to northern Brazil, chiefly in warm, moist forest below 500 m. It can grow on trees, rocks or the ground.

Growing Anthurium indoors

• Rosette maintenance and propagation: Wipe the firm green blades individually and remove old cataphyll material from the crown. Use independently rooted basal offsets for propagation.
• Substrate and repotting: Let Anthurium jenmanii ‘Green Jade’ settle in the original container first, using pot weight, root activity and clean new growth through the rosette crown and outer roots to decide when a later repot will cause the least disruption. Later, use a stable pot only slightly wider with medium bark, coco chips, coir and pumice.
• Watering: Water when the upper layer of the substrate begins to dry. Soak the root ball, drain it and empty water trapped in the central rosette.
• Humidity and airflow: Maintain moderate to high humidity with airflow through the leaf bases. Keep the crown free of standing water.
• Temperature: Keep the compact rosette in stable warmth and away from chilling draughts. Warm roots suit these tropical rosette plants.

Root, stem and leaf problems in Anthurium jenmanii ‘Green Jade’

• Moisture clues behind a droop: A container that feels noticeably lighter and dry mix below the surface indicate thirst; water the root ball, then remove any water held in the crown. A root zone that stays wet and weighty, damp mix and yellowing from the centre or lower leaves indicate wet-root stress; pause the watering cycle and examine roots and leaf bases.
• Roots losing structure: Keep every thick root that remains solid around the crown; a soft or hollow centre shows that the root has failed. Remove soft, hollow or foul-smelling roots using disinfected pruners, keep the crown above a close-fitting airy mix and drain the pot completely.
• Pests under leaves and inside sheaths: Silver scars on new growth point to thrips inside the rosette; cottony pests and scale are easiest to miss inside the crown. Isolate the plant, remove what you can see using a damp swab, apply a product labelled for the pest into accessible hiding places. Apply follow-up treatment at the labelled interval and inspect both leaf surfaces once a week for the next month.
• Brown edges after moisture swings: Brown tips may start with uneven moisture, dry air or fertiliser salts. Lift the pot and assess moisture below the surface; clear mineral build-up and maintain mild air movement through the rosette.
• Dark leaf marks after sun or contact: A dry bleached patch may start with direct sun, while bruising stays local. Separate the plant if a damp spot spreads from the crown or margin; keep leaf bases dry and monitor the outline closely.

Anthurium jenmanii ‘Green Jade’ is toxic to people and pets

• Keep this plant away from children, cats and dogs.
• Its leaves and stems contain insoluble calcium oxalate crystals, which can irritate the mouth, throat, skin and eyes.
• Chewing may cause burning pain, drooling, swelling, vomiting or difficulty swallowing. Contact a veterinarian or medical professional after exposure, especially if swelling or breathing problems occur.

Anthurium jenmanii: name and meaning

The genus name Anthurium combines Greek anthos, “flower”, and oura, “tail”, referring to the tail-like spadix. Jenmanii honours the British botanist George Samuel Jenman.

Heinrich Wilhelm Schott established the genus Anthurium in 1829 in Wiener Zeitschrift für Kunst, Literatur, Theater und Mode, volume 3, page 828.

Heinrich Gustav Adolf Engler first described Anthurium jenmanii in 1905 in Das Pflanzenreich, IV, 23B, page 72.