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Pennisetum setaceum 'Rubrum' (Purple Fountain Grass)

Fountain Grass

Pennisetum setaceum 'Rubrum', or purple fountain grass, is a striking ornamental grass prized for its deep burgundy foliage and graceful, arching form. It grows 1–1.2 metres tall and wide, producing soft, purplish-pink flower plumes from summer into autumn. This drought-tolerant, fast-growing grass thrives in full sun and well-drained soils. Ideal for modern landscapes, containers, or mass plantings, it adds bold colour and texture to gardens. In cooler climates, it is often treated as an annual or overwintered indoors.

Pennisetum setaceum rubrum grass with purple foliage and flowers.

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Suited to regions:All regions
Plant type:Grasses
Height:1.20 m
Spread:1.20 m
Flowering time:Summer
Tolerances:Extended dry periods, Hardy, Wind
Garden uses:Living areas, Pool areas
Garden styles:Alpine, Architectural, Backyard, City & Courtyard, Frontyard, Japanese, Mediterranean, Modern, Tropical
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known asFountain Grass
Sku16791

Pennisetum setaceum 'Rubrum' Prohibited in New Zealand

Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) is an invasive plant in New Zealand and is prohibited from sale, propagation, and distribution. It must not be released into the environment, as it spreads quickly, displaces native vegetation, and poses a significant risk to natural ecosystems.

Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) care tips

Care for Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) by matching moisture and feeding to its growing season. Water during establishment and prolonged dry periods, especially in containers. Remove damaged foliage and tidy old flower stems when needed. Avoid heavy feeding, which can encourage weak growth. Divide crowded clumps if appropriate for the variety. Keep the crown clear of wet debris, maintain good drainage, and check surrounding areas for seedlings that need removing.

Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) size, spacing, and growth rate

Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) typically reaches about 1.2 m tall and 1.2 m wide in suitable conditions. Allow about 1.2 m between centres for separate specimens, leaving room for mature foliage and good airflow. It has a moderate growth rate under suitable conditions. Use the mature spread as a guide when planting beside paths, walls, or neighbouring plants. Containers can limit overall size, so choose a pot that supports healthy root development. Check the developing plant regularly and adjust surrounding planting as needed.

Landscaping uses for Pennisetum setaceum 'Rubrum' (Purple Fountain Grass)

Use Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) for textured borders, repeated group planting, and natural garden designs. Position it where its natural form can be appreciated and allow sufficient space for mature growth. Combine it with plants that enjoy similar light, soil, and watering conditions for a practical and cohesive display. Repeated planting adds rhythm, while a single specimen can create a distinctive focal point. Place it near contrasting foliage so its shape stands out clearly in the planting.

Why buy Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) from The Plant Company?

Buy Pennisetum setaceum 'Rubrum' (Purple Fountain Grass) from The Plant Company, NZ's most trusted plant nursery. Choose from our extensive range and get practical advice to help match your plants to your local conditions. Our team makes online ordering straightforward, with careful packing and delivery throughout New Zealand. Whether you are planning textured borders or refreshing an established display, we can help you select suitable plants. Explore the available options and take the next step towards a beautiful, rewarding planting project.

Questions and Answers

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