Ripogonum scandens
Ripogonum scandens
Not Threatened
Ripogonum scandens, also known as supplejack, is a vigorous climbing vine native to New Zealand. It is recognized for its tough, wiry stems and glossy leaves, and is important in forest ecosystems for providing habitat and food for native birds. native trees
Image credit: Supplejack (Ripogonum scandens) – Photo via Wikipedia
Quick Facts
| Scientific Name | Ripogonum scandens |
|---|---|
| Height | Up to 10 m (as a climber) |
| Spread | 2–4 m or more (sprawling/climbing) |
| Water Needs | Moderate (moist, well-drained soil) |
| Light | Partial to full shade |
| Frost Tolerance | Moderate (protect young plants from heavy frost) |
| Salt Tolerance | Low |
| Growth Rate | Moderate |
| Lifespan | Long-lived perennial |
Climate Suitability
| City | Suitability |
|---|---|
| Whangārei | Ideal |
| Auckland | Ideal |
| Hamilton | Ideal |
| Tauranga | Ideal |
| Rotorua | Ideal |
| Gisborne | Ideal |
| New Plymouth | Ideal |
| Napier | Ideal |
| Whanganui | Ideal |
| Palmerston North | Ideal |
| Wellington | Ideal |
| Nelson | Moderate |
| Christchurch | Moderate |
| Dunedin | Marginal |
| Invercargill | Marginal |
Growing
- Thrives in moist, well-drained soils rich in organic matter
- Prefers partial to full shade
- Climbs by twining around trees and supports
- Water regularly during establishment
Uses
- Ornamental climber for native gardens and forest restoration
- Provides habitat and food for native birds and insects
- Traditional Māori uses include weaving and medicinal applications
Seasonal Care
- Spring: Prune to shape and encourage new growth
- Summer: Water during dry spells; monitor for pests
- Autumn: Mulch and tidy fallen leaves
- Winter: Protect young plants from heavy frost
Pruning
- Prune to control size and remove dead stems
- Train on trellises or supports as needed
Planting Guide
- Choose a shaded or semi-shaded site with moist, fertile soil
- Dig a hole twice the width of the root ball
- Mix compost into the soil
- Plant at the same depth as in the nursery container
- Water well and mulch around the base
- Provide a support for climbing
Propagation
- Seed: Sow fresh seed in moist, well-drained mix; germination can be slow
- Cuttings: Take semi-hardwood cuttings in late summer; use rooting hormone for best results
Cultural History
Ripogonum scandens is known as "kareao" or "supplejack" in te reo Māori. It was traditionally used for weaving baskets, traps, and as a binding material. The plant also features in Māori stories and was used medicinally.
Pests & Diseases
- Generally hardy, but can be affected by scale insects and caterpillars
- Root rot possible in poorly drained soils
- Monitor for signs of disease and treat promptly
Bonus Tip
Train supplejack on a sturdy trellis or fence for a dramatic, native feature. Regular pruning encourages bushier growth and more flowers and fruit.