Choosing the right plants is the single most important factor in successful slope planting. While many plants may survive on flat land, only certain species can cope with steep gradients, erosion pressure, wind exposure and poor soil conditions.
The following ten native New Zealand plants are widely recognised for their ability to stabilise soil, establish reliably and perform long-term on hillsides, banks and cliffs.
Effective slope plants typically share these traits:
Strong or fibrous root systems
Natural tolerance to exposure and drought
Growth habits that reduce soil movement
Ability to thrive without intensive maintenance
A tough, upright shrub with deep anchoring roots. Dodonaea is extremely drought tolerant and thrives in exposed, dry conditions.
Ideal for: Dry hills, sunny banks
Why it works: Deep roots and strong structure
Naturally found on coastal and inland slopes, this shrub is compact, wind resistant and slow growing, which reduces maintenance on steep sites.
Ideal for: Windy ridges and coastal cliffs
Why it works: Dense branching and hardy root system
A fast-growing native tree that establishes quickly on slopes. Its spreading root system helps stabilise larger areas.
Ideal for: Upper banks and large slopes
Why it works: Fast establishment, strong roots
A low-growing, naturally spreading shrub that hugs the ground and binds soil on steep terrain.
Ideal for: Rocky slopes, cliff faces
Why it works: Ground-hugging habit and soil-binding roots
This iconic tussock grass has a dense fibrous root system ideal for erosion control on open hillsides.
Ideal for: Large open slopes
Why it works: Fibrous roots and longevity
A hardy shrub often found on hills and coastal areas. It tolerates wind, salt and drought while developing a strong root network.
Ideal for: Coastal banks and exposed hills
Why it works: Tough roots and dense form
A compact, upright hebe with excellent wind tolerance. Its root system stabilises mid-slope areas.
Ideal for: Sunny banks
Why it works: Compact growth and adaptability
Naturally adapted to harsh, windy environments with spreading roots that stabilise soil.
Ideal for: Coastal cliffs and slopes
Why it works: Salt and wind tolerance
A slow-growing tussock with strong fibrous roots that excel at soil retention.
Ideal for: Dry hillsides
Why it works: Excellent erosion control
A versatile shrub or small tree with a robust root system and tolerance to wind and salt.
Ideal for: Upper slopes and shelter planting
Why it works: Tough, adaptable and long-lived
These native plants have proven their value in some of New Zealand’s most challenging landscapes. When used together, they create layered root systems that significantly reduce erosion, improve soil health and establish resilient, long-lasting plant communities.
