Rhaphidophora tetrasperma 'Goldrush'

Background and origin of Goldrush Rhaphidophora

The wild species behind ‘Goldrush’ is confined to southern Thailand and Peninsular Malaysia. Rhaphidophora tetrasperma climbs over trees and rock in forests that range from comparatively dry to moist and wet, including sandstone and granite landscapes.

Goldrush is a horticultural name for plants patterned in yellow-gold, lime and green. It is not a separate species or botanical variety, and growers may use the name for more than one closely similar cultivated line.

Care for supported aroid vines

Watering

Water when the upper third of the chunky mix has dried, wetting the full root ball and releasing all runoff before the next partial dry-down.

Growth and support: Give Rhaphidophora ‘Goldrush’ a vertical support in bright, filtered light so successive leaves can become larger and more divided. The yellow-gold areas contain less green pigment and can scorch in abrupt direct sun, so introduce any gentle sun gradually.

Root care: Grow it in a chunky aroid mix with generous bark or mineral particles. Permanent saturation causes oxygen loss, while prolonged drought damages active roots and developing leaves.

Feeding: Apply balanced fertiliser at moderate strength during active growth. Remove fully green reversion if the gold pattern is to be maintained; shoots with no green tissue cannot sustain themselves.

When Goldrush Rhaphidophora has problems

A shoot that continues entirely green has reverted; stronger light will not create a new gold sector in an all-green growing point. Remove sustained reversion back to patterned stem tissue if the Rhaphidophora ‘Goldrush’ is to be retained. At the other extreme, a shoot with almost no green may stall. Keep growth that carries enough green tissue to support the gold pattern.

Yellow-gold areas are naturally more vulnerable than green tissue. Crisp tan patches after abrupt sun or a severe dry interval are damage, not stronger variegation. Soft translucent areas suggest cold or prolonged wetness. Correct light and root conditions gradually and leave small, stable marks alone. Repeated trimming of every imperfect sector can weaken an already reduced-green plant.

Several yellow leaves with a wet, slow-drying mix require a root check; limp foliage over a dry root ball needs even rewetting instead. Thrips leave silver scars and dark specks, while mites cause fine stippling. Once pests are confirmed, keep the vine separate and treat the leaf undersides, new growth and stem joints. If stem rot advances, preserve a firm leaf-bearing stem joint that shows both green and gold tissue.

Rhaphidophora tetrasperma ‘Goldrush’ 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.

Why is it called Rhaphidophora tetrasperma?

Rhaphidophora combines Greek rhaphis, meaning needle, with phorein, meaning to bear, referring to the needle-like raphide crystals in its tissues. Tetrasperma combines Greek tetra, four, with sperma, seed.

Justus Carl Hasskarl established the genus Rhaphidophora in 1842 in Flora, volume 25, issue 2, supplement 1, page 11.

Joseph Dalton Hooker first described Rhaphidophora tetrasperma in 1893 in The Flora of British India, volume 6, page 548.