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Pomaderris kumeraho (Kumarahou, Golden Tainui)

Kumarahou, Golden Tainui, Kūmarahou, Gumdigger's Soap

Pomaderris kumeraho, commonly known as Kumarahou or Golden Tainui, is a striking New Zealand native shrub known for its clusters of bright yellow spring flowers and historical use as a traditional Māori medicinal plant. Growing 1–3 metres tall, it thrives in well-drained soils and sunny sites, particularly in northern regions. This deciduous shrub is ideal for native revegetation, low-maintenance gardens, or as a seasonal focal point with its vibrant floral display and cultural significance.

Pomaderris kumeraho shrub with green foliage and yellow flowers.
Pomaderris kumeraho (Kumarahou) yellow flowers and green foliage.
Pomaderris kumeraho (Kumarahou) shrub in a garden covered yellow flowers.

Pomaderris kumeraho (Kumarahou) is currently unavailable.

Why? Our plants are subject to seasonality and high-demand. Please contact us if you would like to know when it becomes available again.

Suited to regions:All regions
Plant type:Shrubs
Height:3.00 m
Spread:3.00 m
Flowering time:Spring
Tolerances:Hardy
Garden uses:Parks, Ponds, Screening, Specimen
Garden styles:Alpine, Backyard, City & Courtyard, Frontyard, Modern, Native
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asKumarahou, Golden Tainui, Kūmarahou, Gumdigger's Soap
Sku10515

Growing Pomaderris kumeraho Successfully in NZ

Pomaderris kumeraho grows best in warm, sheltered sites with full sun and free-draining soil. It prefers northern New Zealand climates but can thrive elsewhere if protected from heavy frost. Avoid waterlogged soils and overly shaded areas, as these can hinder flowering and growth. Plant in spring or autumn, water regularly during establishment, and apply mulch to retain soil moisture. Light pruning after flowering helps maintain shape and encourages denser branching.

Pomaderris kumeraho Care Tips

Pomaderris kumeraho is low-maintenance once established, but benefits from regular care in its early stages. Water young plants consistently, especially during dry spells, to support healthy root development. Mulch annually to retain soil moisture and suppress weeds, keeping mulch clear of the stem. Lightly prune after flowering to shape the plant and promote fuller growth. Avoid heavy frost and ensure it’s planted in a sunny, sheltered spot for best flowering performance. Fertilise in spring if growth appears slow.

Plant Size and Spacing

Pomaderris kumeraho typically grows 1–3 metres tall and 1–2 metres wide, depending on site conditions and climate. For mass planting or revegetation, space plants about 1–1.5 metres apart to allow for natural spread and airflow. When used in garden borders or as a feature shrub, give each plant enough room to showcase its bright yellow spring flowers and natural form.

Why Buy Pomaderris kumeraho from The Plant Company

The Plant Company offers premium Pomaderris kumeraho (Kumarahou / Golden Tainui) plants that are expertly nursery-grown in NZ for optimal health and vigour. Ideal for warm, sunny, well‑drained garden conditions, each plant is selected for vigorous growth and vibrant seasonal blooms. Backed by expert advice, trusted service, and fast nationwide delivery, you can confidently enhance your landscape with this culturally significant and visually striking native shrub.

Questions and Answers

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