Heptapleurum arboricola 'Melanie'

Origin and natural habitat

Heptapleurum arboricola is native to Hainan and Taiwan. In nature it grows in warm, humid forest, often along streams below roughly 900 m. The tree canopy filters the light, and regular rainfall is balanced by well-aerated growing conditions around the roots.

How to care for ‘Melanie’

Keep ‘Melanie’ in bright indirect light. The large cream and yellow areas benefit from good light, but they are also the first parts to burn if the plant is suddenly moved into strong direct sun. Increase any sun exposure gradually.

Let the potting mix dry somewhat before watering again, but do not wait until the whole pot has dried out. When the pot feels noticeably lighter and the mix deeper down is no longer wet, it is ready for water. In winter or lower light, a heavily variegated plant can stay damp for much longer, so always check before watering.

Use an airy potting mix that drains freely but does not dry out immediately. ‘Melanie’ appreciates some humidity, especially in winter, and will look better away from hot, dry heating. Warm, stable conditions suit it best.

Feed only while it is growing steadily, following the fertiliser label. When new growth pauses, reduce or stop feeding. Give it a new pot when the roots are crowded or the old mix no longer drains well. Routine pruning is not necessary; remove damaged growth or shorten an occasional long stem if you want to tidy the shape.

Common problems with ‘Melanie’

• Pale parts of the leaves develop tan or brown patches: If the marks are mostly on the side facing the window, strong direct sun is the likely cause. Move the plant back from the hottest sun and increase exposure more slowly in future. The variegated-plant guide explains why pale tissue is more sensitive.
• White cottony insects collect around the leaf joints: Check the inner stems and leaf stalks for mealybugs. Keep it apart from the rest of your plants, remove visible insects and use a treatment labelled for mealybugs on houseplants if needed. Repeat it only as instructed on the label. The mealybug guide covers the full process.
• The plant becomes limp and several leaves turn yellow: Check how wet the potting mix is. Water thoroughly if the pot is genuinely dry and light; if it is still wet and heavy, leave it to dry and make sure excess water can escape.
• New growth is small and the stems are widely spaced: Improve the light first. Move the plant gradually closer to a bright window and only increase feeding if it is already growing actively. Extra fertiliser cannot make up for a dark position.

Heptapleurum (Schefflera) arboricola ‘Melanie’ 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.

How did the name change from Schefflera arboricola to Heptapleurum arboricola?

Heptapleurum combines Greek hepta, meaning seven, with pleuron, meaning rib or side. The epithet arboricola means tree-dweller.

Joseph Gaertner established the genus Heptapleurum in 1791 in De Fructibus et Seminibus Plantarum, volume 2, page 472.

Bunzō Hayata first described Heptapleurum arboricola in 1916 in Icones Plantarum Formosanarum, volume 6, page 23.

Schefflera arboricola is the familiar former name. Porter P. Lowry II and Gregory M. Plunkett reinstated Heptapleurum for the Asian group formerly included in Schefflera in 2020 in Novon, volume 28. Kew’s World Checklist accepts Heptapleurum arboricola.