Species

Lomandra confertifoliaMat Rush

2 other cultivars

grass

Seascape Mat Rush

Lomandra confertifolia 'Seascape'

The Story

Plant Bio

Lomandra is a genus of tough, evergreen, grass-like perennials native to Australia, characterized by dense tussocks of strappy foliage and exceptional drought tolerance. These dioecious plants belong to the asparagus family and are widely utilized in low-maintenance landscapes for their ability to withstand harsh coastal exposures and poor soils.

'Seascape' is a male selection distinguished by its highly weeping, cascading habit that forms a dense mound of narrow, silvery blue-grey foliage. In spring and summer, small, highly fragrant yellow flower spikes emerge from reddish-brown buds, tucked discreetly within the arching canopy.

Uses & Benefits:

Provides a striking, weeping texture with fine, silvery blue-grey foliage that cascades like a wave.

Excellent for stabilizing soil on slopes and thriving in harsh, salt-exposed coastal environments.

Provides shelter for beneficial insects and ground-dwelling wildlife while requiring minimal water once established.

SpeciesLomandra confertifoliaMat Rush

Essentials

At a Glance

Plant Type

Grass

Height

24"

Width

36"

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Low

Humidity

Moderate

Lifespan

Perennial

Native To

Australia

Toxicity

Non-toxic

Bloom period

Spring – Summer

In flower about 6 months of the year

Planting

How to Grow

Select a planting site in full sun to partial shade with excellent drainage, such as a sandy loam or a raised bed.
Dig a hole twice as wide as the root ball but equal in depth, ensuring the crown sits level with or slightly above the surrounding soil.
Backfill with native soil, press firmly to eliminate air pockets, and water deeply to settle the roots.
Apply a thin layer of organic mulch around the base, keeping it clear of the central crown to prevent rot.

Pro Tip

Avoid annual shearing; instead, cut the entire clump back to near ground level once every three to four years to completely renew the foliage and prevent the accumulation of dead, brown leaves.

Keep It Thriving

Care Guide

Do

Do plant in highly permeable soil to prevent root rot.
Do water moderately until established, then transition to infrequent deep waterings.
Do apply a low-phosphorus, slow-release fertilizer in spring if growth appears sluggish.

Don't

Do not prune the foliage into formal balls or shear annually.
Do not plant in heavy, poorly drained clay soils that retain standing water.
Do not cut deeply into the old, woody central crown when rejuvenating the plant.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Fertilize
Pest Check
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Mass plantingCoastal gardensRock gardensErosion control on slopesBorder edging

Companion Plants

Dianella caerulea Westringia fruticosa Rosmarinus officinalis Agave attenuata

Multiply

Propagation Methods

Good to Know

Common Questions

Seascape Mat Rush questions

What zones can Seascape Mat Rush grow in?

Seascape 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 Seascape Mat Rush deer resistant?

Not reliably. Deer may browse Seascape Mat Rush, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Seascape Mat Rush bloom?

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

Does Seascape Mat Rush need full sun?

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

Is Seascape Mat Rush drought tolerant?

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