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Katrinus Deluxe Mat Rush

Lomandra longifolia 'Katrinus Deluxe'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Grass

Height

36 inches

Width

36 inches

Light

Full Sun, Partial Sun

Zones

8, 9

Water

Low

Humidity

Low to high

Lifespan

Long-lived perennial

Native To

Australia

Toxicity

Non-toxic

The Story

Plant Bio

Lomandra longifolia, or Mat Rush, is a tough, grass-like perennial native to Australia. It is highly valued for its durability, tolerating drought, heat, and a wide range of soils while providing an evergreen, architectural presence. 'Katrinus Deluxe' is an improved selection of the popular 'Katrinus' cultivar, featuring slightly wider, darker green leaves and a more uniform, graceful, arching habit. It is exceptionally tough and reliable for low-maintenance landscapes.

Bloom Period:

EarlyLate

Uses & Benefits:

The fine-textured, deep green, arching foliage provides a soft, graceful effect year-round. It works beautifully in mass plantings, creating a sea of green, and serves as an excellent architectural element in modern or Mediterranean-style gardens.

Its extreme toughness and low water needs make it a superior choice for difficult sites like slopes, roadsides, and commercial plantings. It effectively controls erosion and outcompetes weeds once established, reducing maintenance costs.

As a dense, clumping plant, it provides habitat and shelter for small ground-dwelling wildlife like lizards and insects. Its flowers, though small, can provide a minor nectar source for native insects.

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Where to Buy

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Planting

How to Grow

Select a location in full sun to light shade with well-drained soil.
Dig a hole that is twice as wide as the pot but just as deep.
Gently tease out any circling roots at the bottom of the root ball.
Place the plant in the hole, ensuring the crown is at or slightly above soil level.
Backfill the hole with native soil and water in thoroughly.
Water regularly for the first few months until the plant is established.

Pro Tip

Provide good drainage. While tough, Lomandra will not tolerate sitting in waterlogged soil, especially during winter.

Keep It Thriving

Care Guide

Do

Water deeply but infrequently once established to encourage drought tolerance.
Plant in a location with excellent drainage.
Use as a low-maintenance alternative to ornamental grasses in warm climates.
Cut back hard in late winter if the plant looks tired to refresh foliage.

Don't

Don't overwater, as this can lead to root rot.
Avoid planting in heavy, constantly wet clay soil.
Don't fertilize heavily; Lomandra thrives in lean soils.
Don't plant too deep; keep the crown above the soil line.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Plant
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Durable mass planting for commercial landscapesModern, architectural accent in dry gardensTough, elegant groundcover for slopes and banks

Companion Plants

Agave 'Blue Glow' Leucadendron 'Safari Sunset' Westringia fruticosa 'Morning Light' Salvia leucantha Phormium 'Jack Spratt'

Multiply

Propagation Methods

Good to Know

Common Questions

Katrinus Deluxe Mat Rush questions

What zones can Katrinus Deluxe Mat Rush grow in?

Katrinus Deluxe Mat Rush is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Katrinus Deluxe Mat Rush deer resistant?

Yes — Katrinus Deluxe Mat Rush is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Katrinus Deluxe Mat Rush bloom?

Katrinus Deluxe Mat Rush typically blooms in late spring through early summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Katrinus Deluxe Mat Rush need full sun?

Katrinus Deluxe Mat Rush does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Katrinus Deluxe Mat Rush drought tolerant?

Yes — once established (usually after the first full season), Katrinus Deluxe Mat Rush handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.