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blue oat grass for sale

Looking to add vivid colour and texture to your garden? Find stunning blue oat grass for sale at our New Zealand nursery. Helictotrichon sempervirens, also known as blue oat grass, is a highly sought-after ornamental grass loved for its silvery-blue foliage and graceful, arching form. This low-maintenance perennial is perfect for modern landscapes, coastal gardens, mixed borders, and container plantings, offering all-season interest with its striking hues and tidy, clumping habit.

Helictotrichon sempervirens (Blue Oatgrass)

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Blue Oatgrass

Helictotrichon sempervirens, commonly known as Blue Oatgrass, is a lovely and popular ornamental grass featuring distinct, blue foliage. It grows as a mound up to 35 cm tall and 40 cm wide producing slender and erect leaves. Helictotrichon sempervirens is widely used by landscape designers due to its versatility and aesthetic appeal. The Blue Oat Grass is commonly mass planted, included in borders and mixed plantings, used in alpine themed gardens, or planted to brighten a dull area.

helicotrichon-sempervirens-3
  • Suited to regions:
    All regions
  • Plant type:
    Grasses
  • Height:
    35 cm
  • Spread:
    40 cm
  • Flowering time:
    Summer
  • Tolerances:
    Coastal, Extended dry periods, Hardy, Wind
  • Garden uses:
    Borders, Containers, Living areas, Paths & Steps, Ponds, Pool areas
  • Garden styles:
    Alpine, Architectural, Backyard, City & Courtyard, Coastal, Frontyard, Japanese, Mediterranean, Modern
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Helictotrichon sempervirens (Blue Oatgrass)

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Why Choose Blue Oat Grass (Helictotrichon sempervirens)?

Blue oat grass is an outstanding choice for New Zealand gardens. Its intense blue-silver leaves form dense clumps that stay attractive year-round. Drought-tolerant once established, blue oat grass excels in full sun and well-drained soils, making it a reliable performer in hot, exposed, or windy locations. In early to midsummer, tall oat-like flower spikes rise above the foliage, bringing elegant movement and architectural interest.

Helictotrichon sempervirens pairs beautifully with a variety of other grasses and perennials. It provides contrast to dark greens and deep purples, brightens up rockeries, and softens hard edges in modern landscaping. At around 60cm tall and wide, it fits easily into small gardens as well as large-scale mass plantings.

Blue Oat Grass Care and Growing Tips

Blue oat grass thrives in conditions that mimic its Mediterranean heritage. Plant in full sun for the best colour and healthiest growth. Avoid overly wet soils, as blue oat grass prefers good drainage and is highly tolerant of dry conditions once established. Minimal maintenance is required; simply tidy up any dead leaves at the base in late winter or early spring. Divide clumps every several years if needed to maintain vigour.

For gardeners seeking diversity in their ornamental grass collection, consider pairing blue oat grass with other standout varieties such as Carex solandri, Juncus edgariae (Edgar's Rush), or the shimmery Liriope 'Silver Dragon'. Each brings unique texture and colour, ensuring year-round visual interest.

Landscaping Ideas with Blue Oat Grass

Helictotrichon sempervirens is as versatile as it is beautiful. It's perfect for:

Experiment with contrasting grasses like Festuca actae (Blue Tussock) for complementary shape and colour, or naturalise alongside Scirpus americanus for relaxed, wild-meadow effects.

Buy Blue Oat Grass from Our NZ Nursery

Shop blue oat grass for sale directly from our nursery and enjoy robust, healthy plants delivered throughout New Zealand. Whether you’re a landscape designer, a keen gardener, or just starting out, this exceptional grass will bring texture, colour, and easy-care reliability to your outdoor space. Order today and let Helictotrichon sempervirens transform your garden with its graceful blue charm.


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Corokia Mangatangi and Avocado 'Reed' are beloved staples, but Dracaena draco, Verbena bonariensis (Tall Verbena), and Miscanthus sinensis bring fresh energy to any planting scheme.
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