kumarahou
Pomaderris kumeraho | kumarahou, gum-digger’s soap, golden tainui
A striking shrub, typically found on roadsides, banks, and among gum land vegetation. This attractive, semi-deciduous shrub earns its "Golden Tainui" name from the vibrant clusters of bright yellow flowers that appear in spring. Ideal for small gardens and native revegetation, it prefers full sun and nutrient-poor, well-drained soils. While it tolerates light frost, it can be temperamental and short-lived in cultivation due to susceptibility to root rot, so it thrives best in exposed sites. Its vibrant floral display and cultural significance make it a lovely seasonal focal point in low-maintenance gardens.
typical habitat.
Coastal to lowland, in open, early to mid successional habitats
drainage.
well drained
free draining
sun.
full sun
partial shade
mature specifications.
height | 3m
width | 3m
pollinators calendar.
flowering | September - October
fruiting | Novermber - January
did you know?
The name "gumdigger's soap" came from the lather its flowers produced when rubbed with water, a practice adopted by 19th-century kauri gum diggers. Early European settlers also used the plant to flavor alcohol. Today, kūmarahou remains a popular ingredient in many New Zealand herbal remedies, found in teas, facial cleansers, and even makeup removers.