Casuarina 'Green Wave' is a compact Australian native shrub prized for its fine, soft green foliage and naturally dense, rounded growth habit. Selected from the hardy Swamp She-oak, this low-maintenance variety provides year-round texture and colour while thriving in a wide range of Australian conditions. Its compact size makes it ideal for low hedging, borders, mass planting, native gardens and coastal landscapes, where it delivers a modern architectural look with minimal upkeep. Highly tolerant of drought, coastal exposure and poor soils, 'Green Wave' is an excellent choice for both residential and commercial landscapes.

Flowers

Small, inconspicuous flowers are produced during the warmer months and are followed by decorative woody cones that provide subtle seasonal interest.

Foliage

Fine, soft, bright green needle-like branchlets form a dense evergreen canopy that provides year-round colour and attractive texture. The foliage gently moves in the breeze, adding softness and movement to the landscape.

Fruit

Small woody cones develop after flowering and remain on the plant, adding natural character while providing a food source for native wildlife.

Form & Size

A compact, dense evergreen shrub with a naturally rounded habit.

Mature Size: Approximately 60cm–1m high × 80cm–1.2m wide

Growing Conditions

Sun: Full sun to part shade.

Soil: Grows well in a wide range of well-drained soils, including sandy, loamy and clay soils. Highly adaptable to poor soils.

Water: Water regularly during establishment. Once established it is highly drought tolerant and requires very little supplementary watering.

Frost: Tolerates light to moderate frosts.

Wind: Excellent tolerance of coastal winds and salt spray.

Climate: Well suited to subtropical, temperate, Mediterranean and coastal climates throughout Australia.

Uses

• Low hedging
• Borders
• Mass planting
• Native gardens
• Coastal gardens
• Commercial landscaping
• Low-maintenance gardens
• Feature planting
• Streetscapes

Maintenance

Very low maintenance. Prune lightly if required to maintain a compact shape or encourage denser growth. Apply a slow-release native fertiliser during spring if desired. Mulching around the base will help retain soil moisture and suppress weeds during establishment.

Notes

'Green Wave' is an excellent alternative to traditional low hedging plants, offering a unique fine-textured appearance with outstanding toughness. Its compact habit, drought tolerance and ability to withstand coastal conditions make it a reliable performer in modern Australian gardens. Once established, it requires minimal care while providing year-round structure and colour.

Companion Plants

• Banksia 'Birthday Candles'
• Grevillea 'Gingin Gem'
• Westringia 'Mundi'
• Lomandra 'Little Pal'
• Dianella
• Myoporum parvifolium
• Scaevola 'Aussie Salute'
• Rhaphiolepis 'Snow Maiden'
• Callistemon 'Better John'

Common Name: Green Wave Swamp She-oak

Botanical Name: Casuarina glauca 'Green Wave'

Family: Casuarinaceae

Origin: Cultivated selection of the Australian native Casuarina glauca, which naturally occurs along the eastern coastline of Australia.