Apodasmia similis (Apodasmia similis)

Common Names: Oioi, Jointed Wire Rush, Sea Rush
Family: Restionaceae
Origin: New Zealand
Plant Type: Evergreen Rush / Tussock-forming Perennial

Overview:

Apodasmia similis, commonly known as Oioi, is a distinctive New Zealand native rush with upright, jointed, reed-like stems in shades of olive green to bronze. Its wiry, architectural form and salt tolerance make it ideal for coastal gardens, wetland restoration, and naturalistic planting schemes. A hardy, low-maintenance plant, Oioi adds texture, movement, and native character to a variety of landscapes.

Key Features:

Foliage: Slender, cylindrical stems with visible joints ("nodes") and subtle color variations — often with a bronze or reddish tint in cooler weather.
Flowers/Fruit: Small, inconspicuous brownish flower spikes appear in summer; not showy but add fine detail.
Form & Habit: Upright, clump-forming, grass-like with a distinctive rush structure.
Growth Rate: Slow to moderate.
Cultural or Ecological Value: Important native plant for riparian and wetland restoration; provides habitat for native birds and insects; excellent erosion control.

Mature Size:

Ideal Growing Conditions:

Landscaping and Garden Uses:

• Ideal for wetland and riparian planting

• Excellent in coastal gardens due to salt and wind tolerance

• Use in native and ecological restoration projects

• Adds vertical texture to mixed plantings or gravel gardens

• Great for mass planting or naturalistic landscaping

Care and Maintenance:

• Pruning: Minimal; remove old or dead stems at the base to refresh clump

• Watering: Keep moist during establishment; tolerates both wet and dry periods once established

• Feeding: Not typically required; thrives in low-fertility soils

• Pests and Diseases: Very resilient; no significant pest or disease issues

• Additional Tips: Mulch in dry areas to retain moisture; can be divided every few years if clump becomes congested

Fun Fact or Botanical Insight:

The Māori name Oioi means "to shake or tremble," referencing the plant’s movement in the wind — its slender, jointed stems sway gracefully, creating soft sound and motion in the landscape.

Why Choose Apodasmia similis?

Whether you're planting a coastal garden, stabilizing a wetland edge, or creating a serene natural landscape, Apodasmia similis offers structure, durability, and native beauty. Its upright habit and textural presence make it a sustainable, low-maintenance choice for designers and conservationists alike.

Pot Size:

These are our standard size in 7cm square pots.