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Helictotrichon sempervirens (Blue Oatgrass)

5 from 1 customers

Blue Oatgrass

Helictotrichon sempervirens (Blue Oatgrass) is a striking evergreen ornamental grass valued for its steel blue foliage and graceful form. The fine textured leaves create a tidy mound that provides year round structure and colour in the garden. During summer, tall flower stems rise above the foliage, adding movement and visual interest. Helictotrichon sempervirens (Blue Oatgrass) is well suited to New Zealand conditions and is an excellent choice for modern landscapes, borders, and mass plantings.

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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
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asBlue Oatgrass
Sku12376

How to grow Helictotrichon sempervirens (Blue Oatgrass) in NZ

Helictotrichon sempervirens (Blue Oatgrass) grows best in a sunny position with free draining soil. It performs well in a range of soil types provided drainage is good. Improve heavy soils with compost before planting to encourage healthy root development. Water regularly during establishment, then only occasionally once established. This ornamental grass tolerates dry conditions and thrives in open sunny locations where its foliage colour can develop fully.

Helictotrichon sempervirens (Blue Oatgrass) care tips

Helictotrichon sempervirens (Blue Oatgrass) is easy to maintain and requires minimal care. Apply a balanced fertiliser in spring to encourage healthy growth and strong foliage colour. Remove old or damaged leaves as needed to keep the plant looking tidy. Flower stems can be cut back after flowering if desired. Water during prolonged dry periods but avoid overwatering. Good drainage and occasional grooming will help maintain the plant's attractive appearance.

Helictotrichon sempervirens (Blue Oatgrass) size, spacing, and growth rate

Helictotrichon sempervirens (Blue Oatgrass) typically grows to around 60 to 90 centimetres tall and wide, with flower stems reaching higher. It has a moderate growth rate and develops into a dense clump over time. Space plants approximately 60 to 90 centimetres apart when creating borders or mass plantings. This spacing allows healthy airflow and provides room for each plant to develop its graceful natural form.

Landscaping uses for Helictotrichon sempervirens (Blue Oatgrass)

Helictotrichon sempervirens (Blue Oatgrass) is ideal for modern gardens, borders, gravel gardens, coastal landscapes, and mass plantings. The blue foliage provides year round contrast and complements flowering perennials, shrubs, and other ornamental grasses. Its tidy growth habit makes it suitable for both formal and informal garden designs. Whether planted as a feature or in groups, it adds texture, movement, and structure to the landscape.

Why buy Helictotrichon sempervirens (Blue Oatgrass) from The Plant Company?

The Plant Company is NZ's most trusted plant nursery, supplying premium quality plants grown for New Zealand conditions. When you purchase Helictotrichon sempervirens (Blue Oatgrass) from The Plant Company, you receive a healthy and vigorous plant backed by expert advice and exceptional customer service. Orders are carefully packed and delivered nationwide to arrive in excellent condition. With a reputation for quality, reliability, and customer satisfaction, The Plant Company provides confidence and value with every plant purchase.

Questions and Answers

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Reviews

5 from 1 customers
Francis Mason - Waikato

Great plants, thank you!

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