Species

Lomandra longifoliaSpiny-headed Mat-rush

5 other cultivars

grass

Nyalla Mat Rush

Lomandra longifolia 'Nyalla'

The Story

Plant Bio

Lomandra longifolia is a tough, evergreen Australian perennial native to eastern states, where it grows in diverse habitats from coastal dunes to forest understories. The species forms dense, grass-like tussocks of flat, strap-like leaves and produces spiny, straw-coloured flower bracts that release a heavy, sweet scent in spring.

'Nyalla' is a semi-compact vegetative sport selected for its upright, fountain-like habit that mimics the form of a trunkless grass tree. Its fine, stiff foliage carries a distinct blue-grey tint and remains clean and upright without sprawling.

Uses & Benefits:

Provides a clean, architectural blue-grey fountain shape that holds its colour and structure year-round.

Excellent for stabilizing sandy soils and slopes due to its tough, extensive root system.

Provides critical habitat cover for small native fauna and supports native bees and butterflies with its spring flowers.

SpeciesLomandra longifoliaSpiny-headed Mat-rush

Essentials

At a Glance

Plant Type

Grass

Height

35 inches

Width

35 inches

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Low

Humidity

Low to high

Lifespan

Perennial

Native To

Australia

Toxicity

Non-toxic

Bloom period

Spring

In flower about 1 month of the year

Planting

How to Grow

Dig a planting hole twice the width of the root ball and of equal depth to ensure the surrounding soil is loose.
Position the plant so the crown sits slightly above the surrounding soil level to ensure water drains away from the base.
Backfill with native soil, firming gently around the root ball, and water in thoroughly to settle the soil.
Apply a thin layer of organic mulch around the base, keeping it clear of the immediate foliage and crown.

Pro Tip

Plant the crown slightly proud of the soil level to prevent stem rot, and avoid annual shearing; cutting into old, dead wood disfigures the clump, which only requires hard rejuvenation pruning every three to five years.

Keep It Thriving

Care Guide

Do

Plant in well-drained soil to prevent root rot.
Water regularly during the first summer until the root system is established.
Cut the foliage back to 10 to 20 centimetres above the ground every three to five years to rejuvenate old clumps.

Don't

Do not prune the foliage annually or cut into old, dead leafless wood.
Do not plant the crown below the soil line as this invites stem rot.
Do not allow the soil to remain permanently waterlogged.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Mass plantingsCoastal gardensErosion control on slopesArchitectural borders

Companion Plants

Westringia fruticosa Anigozanthos flavidus Correa alba

Multiply

Propagation Methods

Good to Know

Common Questions

Nyalla Mat Rush questions

What zones can Nyalla Mat Rush grow in?

Nyalla 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.

When does Nyalla Mat Rush bloom?

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

Does Nyalla Mat Rush need full sun?

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

Is Nyalla Mat Rush drought tolerant?

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