Alocasia macrorrhizos 'Aurea Variegata'

Where Alocasia macrorrhizos ‘Variegata Aurea’ comes from

‘Variegata Aurea’ is a gold-variegated form of Alocasia macrorrhizos. Its parent species comes from warm, rainy parts of the central Malay Archipelago, New Guinea, the western Pacific and northern Queensland. During active growth, give it bright indirect light and regular water. Use a stable, roomy pot with an airy mix that drains quickly.

Care guide for Alocasia macrorrhizos ‘Aurea Variegata’

• Light: Provide very bright, diffuse light with limited gentle sun after careful acclimation. Shield yellow and cream areas from intense midday exposure.
• Watering: Water when the upper layer is partly dry and the deeper mix remains lightly moist. Saturate the full root ball, drain it well and check moisture below the surface in large pots.
• Humidity: Aim for relative humidity around 60–80% to support the broad leaves and their pale sections.
• Airflow: Provide gentle circulation around the leaves and the bases of the leaf stalks. Protect pale areas from dry heated airflow.
• Temperature: Maintain about 20–30°C, with a consistently warm root zone.
• Substrate: Use a rich, open blend of coco fibre or peat, bark and pumice or perlite.
• Feeding: Apply a dilute complete fertiliser with micronutrients during active growth. Reduce the dose in weaker light and flush the mix occasionally to protect pale margins from salt damage.
• Support: Support a tall plant if necessary and leave enough room for each broad new leaf to open.
• Repotting: Choose a stable pot with free drainage, enlarge it only as the root system requires and retain the thick stem at its original level.
• Variegation: Natural changes in pattern from leaf to leaf require no adjustment to routine care.
• Propagation: Divide a well-rooted basal shoot or corm with green tissue alongside the aurea pattern. Establish it in warmth, humidity and an evenly moist, aerated mix.

Troubleshooting Alocasia macrorrhizos ‘Aurea Variegata’

• Yellow patterning looks like chlorosisFirm yellow sections with stable boundaries are part of the plant’s colour pattern. Chlorosis is more likely when formerly green tissue fades broadly and the change is accompanied by drooping, stalled growth or root decline. Check the moisture and root condition before adding fertiliser.
• Brown patches form in the yellow areasLook for a recent increase in direct sun, cold exposure, irregular root moisture or accumulated fertiliser salts. Damage on the most exposed side after a light change supports scorch. Keep the light filtered, stabilise warmth and watering, and judge improvement from new growth.
• The plant droops in a persistently damp potInspect the complete root ball and lower stem. Remove soft or collapsing roots with clean tools and repot the viable root system into fresh, aerated substrate. Choose the new container by the roots that remain, even when the foliage is already large.

Alocasia macrorrhizos ‘Aurea Variegata’ 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.

Where does the name Alocasia macrorrhizos come from?

Alocasia combines the Greek prefix a-, meaning “without” or “lacking”, with Colocasia, the name of a related aroid genus. Macrorrhizos means “large-rooted”, from Greek makros, “large”, and rhiza, “root”.

The formal botanical citation is Alocasia (Schott) G.Don. George Don established the genus at that rank in 1839 in Hortus Britannicus, edition 3, page 631.

Carl Linnaeus first described it as Arum macrorrhizon in 1753 in Species Plantarum, page 965. George Don later placed it in Alocasia as Alocasia macrorrhizos in 1839 in Hortus Britannicus, edition 3, page 631.