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Machaerina sinclairii (Ngāwhā, Pepepe)

5 from 1 customers

Thatch Sedge

Machaerina sinclairii, commonly known as Ngāwhā, Broadleaf Sedge, or Pepepe, is a NZ native grass that features long, strap-like leaves and grows as a clump to about 80 cm tall and 1.5 m wide. The plant is adorned with arching, red-brown flower heads in summer. Machaerina sinclairii is commonly used in revegetation and riparian plantings, mass planted on a bank, planted around larger trees and shrubs, or included in a cottage garden.

Machaerina sinclairii growing alongside a stream.
Machaerina sinclairii growing alongside a path.
Machaerina sinclairii with brown flowers and green foliage.
Machaerina sinclairii mass planted beside a path in shade.
Machaerina sinclairii growing in shade with lush, green foliage.

Machaerina sinclairii (Thatch Sedge) 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:Subtropical, Temperate
Plant type:Grasses
Height:80 cm
Spread:1.50 m
Flowering time:Summer
Tolerances:Coastal, Wet
Garden uses:Borders, Living areas, Paths & Steps, Ponds
Garden styles:Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Modern, Native, Riparian
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asThatch Sedge
Sku10131

Growing Machaerina sinclairii Successfully in NZ

Machaerina sinclairii, also known as Ngāwhā or Thatch Sedge, is a hardy, native NZ sedge ideal for naturalistic and wetland plantings. It thrives in full sun to part shade and prefers moist, well-drained to boggy soils. This clump-forming plant tolerates wind, coastal exposure, and seasonal wetness, making it perfect for revegetation, erosion control, or native gardens. With minimal maintenance once established, it's a robust and attractive choice for enhancing biodiversity in New Zealand landscapes.

Machaerina sinclairii Care Tips

Plant Machaerina sinclairii in full sun to part shade with moist, well-drained or boggy soil. Water regularly during establishment, especially in dry conditions. Mulching helps retain soil moisture and reduce weed growth. Trim back dead or damaged foliage in late winter or early spring to keep the plant tidy. It typically requires no fertiliser and is resistant to most pests and diseases, making it a low-maintenance choice for native and wetland gardens.

Plant Size and Spacing

Machaerina sinclairii typically grows 1–1.5 metres tall and spreads up to 1 metre wide. For dense coverage in wetland or landscape plantings, space plants 80–100 cm apart. This allows each clump room to mature while achieving good visual impact and erosion control.

Why Buy Machaerina sinclairii from The Plant Company

The Plant Company supplies premium-quality Machaerina sinclairii plants. Each plant is selected for its vigour and suitability to local conditions, ensuring successful establishment in your garden or landscape. With expert advice, fast delivery, and a reputation for excellence, The Plant Company is a trusted source for native plants that thrive.

Questions and Answers

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Reviews

5 from 1 customers
Susan Hilton - Bay of Plenty
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