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Baumea rubiginosa

Nutsedge

Baumea rubiginosa, commonly known as the Orange Nut Sedge, is a vigorous, NZ native rush that features slender, green foliage. Red-brown seed heads are borne during summer above the foliage which adds an interesting element to this plant as it grows to 1.5 m wide and 1 m high. Baumea rubiginosa is commonly used to revegetate wetlands but can also be used around pond edges, alongside streams, or in boggy areas.

Baumea rubiginosa plants growing in water.

Baumea rubiginosa (Nutsedge) is currently unavailable, but we do have other other amazing species and varieties of Baumea available.

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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:All regions
Plant type:Grasses
Height:1.00 m
Spread:1.50 m
Flowering time:Summer
Tolerances:Coastal, Hardy, Wet, Wind
Garden uses:Borders, Living areas, Paths & Steps, Ponds, Pool areas
Garden styles:Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Modern, Native, Riparian
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asNutsedge
Sku10021

How to grow Baumea rubiginosa?

Baumea rubiginosa is a versatile, moisture-loving New Zealand native ideal for wetland edges, ponds, and rain gardens. To grow it successfully, plant in full sun to partial shade in consistently moist or waterlogged soils—such as clay, loam, or sandy soil—where it can also tolerate shallow standing water up to 30 cm deep. It spreads slowly via rhizomes and forms dense clumps that stabilise soil and prevent erosion. Water regularly during establishment and ensure the site stays moist, especially in drier areas. Although it generally doesn’t require fertilising, a light application of slow-release fertiliser in spring can boost growth. Prune old or dead stems in late winter or early spring to encourage fresh new growth. Baumea rubiginosa is wind- and frost-tolerant, making it ideal for restoration planting, water gardens, and coastal landscapes.

Where to buy Baumea rubiginosa?

The Plant Company has the best Baumea rubiginosa plants to buy in NZ. Our production nursery specialises in growing amazing plants and our logistics team pack them carefully for our customers. The pricing is competitive and the quality is exceptional. The seed is eco-sourced and then grown into amazing plants ready for their new homes. We all love producing this beautiful plant and hearing our customers thank us for providing them with healthy and vibrant plants. Let us look after your plant needs and impress you with both our products and service!

Baumea rubiginosa care

Baumea rubiginosa, also known as soft twig-rush, is a clumping, water-loving native rush ideal for wetland edges, ponds, and rain gardens. It thrives in full sun to part shade and prefers consistently damp to waterlogged soils, including sandy, loamy, or clay types. This hardy plant can tolerate shallow water (up to 30 cm deep) and occasional flooding. Regular watering is essential during establishment, especially if planted in drier soils. Prune dead or damaged stems in late winter or early spring to maintain a tidy appearance and promote fresh growth. It rarely needs fertilising but may benefit from a slow-release fertiliser in nutrient-poor sites. Baumea rubiginosa is frost-hardy and excellent for erosion control, habitat creation, and naturalistic landscaping around water features.

Questions and Answers

Have a question about Baumea rubiginosa (Nutsedge)? We are here to help.

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