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Plant guide

Matgrass.

Nardus stricta

Pronounced NAR-dus STRIK-tuh

Also known as Mat-Grass, Matgrass

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Matgrass
Photo by Dmitriy Bochkov (CC BY) via iNaturalist

Matgrass is a hardy, perennial grass that forms dense, low mats in acidic, nutrient poor soils. It is a common sight in heathlands and mountain pastures across Europe. You will find it thrives where other grasses struggle to gain a foothold.

Another photo of Matgrass
Photo by Thomas Gyselinck (CC BY) via gbif

At a glance

Care level
Easy
Plant type
Perennial grass
Light
Full sun
Indoor light
Direct sun
Water
Every 7 to 14 days
Mature size
20 to 30 centimeters
Growth rate
Slow
Hardiness
USDA 3 to 8
Bloom time
Early to mid summer

Care

This grass prefers cool, damp conditions and does not require much attention once established. Watch for signs of drying out during extreme heat, though it is quite drought tolerant in its native range. Keep the soil acidic to ensure it stays healthy.

Watering
Keep the soil consistently moist but never waterlogged.
Feeding
It rarely needs fertilizer as it is adapted to poor soil conditions.
Pruning
Trim back dead foliage in early spring to encourage fresh growth.
Repotting
Repot only when the root system has completely filled the container.
Soil
Acidic, sandy, or peaty soil
Soil pH
4.0 to 6.0
Temperature
-30 to 25°C
Humidity
60 to 90%
Drought tolerance
Moderate
Lifespan
Perennial, typically 5 to 10 years.
Deer and rabbits
High

Signs it needs repotting

  • Roots circling the bottom of the pot.
  • Reduced growth despite adequate moisture.

Safety

People
There are no reports of significant toxicity to humans, though it is not a food source.
Children
The sharp, stiff leaf blades can cause minor scratches to children's skin if they play in dense patches.
Contact allergens
The stiff, wiry leaves can cause minor skin irritation if handled roughly.
Airborne allergens
Like many grasses, it produces wind-borne pollen that may trigger hay fever in sensitive individuals.
Edibility
This grass is not considered edible for humans and is generally avoided by grazing livestock due to its tough, wiry texture.

How to identify it

  • Dense, tufted perennial grass clumps
  • Stiff, bristle like grey green leaves
  • One sided, slender flower spikes
  • Forms low, mat like colonies
Height
0.15 to 0.3m
Spread
0.1 to 0.2m
Leaves
green, grey-green, deciduous
Flowers
purple, yellow, 0.5 to 1cm

Problems to watch for

  • Rust fungus · Orange or brown pustules may appear on leaves during periods of high humidity.

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Growing it

Propagation
division, seed
When to plant
spring, autumn
Overwintering
The plant is fully hardy and requires no special protection. Simply leave the foliage in place to protect the crown from winter moisture.
In containers
It is not well-suited for containers due to its specific need for acidic, nutrient-poor soil and its tendency to form wide mats.

Division

  1. 1. Dig up a mature clump in early spring.
  2. 2. Gently tease the root mass apart into smaller sections.
  3. 3. Replant the sections immediately into acidic, moist soil.

Pair this grass with other acid-loving, low-nutrient plants to create a naturalistic heathland display.

Grows well with

  • Heath bedstraw · They naturally occur together in acidic heathland habitats.
  • Tormentil · This plant shares the same preference for nutrient-poor, acidic soils.

Similar species

Science

Family
Poaceae
Genus
Nardus
Order
Poales
Class
Liliopsida
Native range
Europe, western Asia, and North Africa. Introduced in parts of North America.
Conservation
It is a common and widespread species in its native range and is not currently of conservation concern.

It survives in harsh, nutrient-poor environments by forming dense mats that conserve moisture and outcompete other species for limited resources.

Value to wildlife
larval host plant
Pollinators
bees, butterflies
Uses
erosion control, ornamental grass, habitat restoration

Through the year

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Flowering
Fruiting
Foliage

Ecological indicators

Salinity
1/9
Soil reaction
2/9
Light
7/9
Temperature
3/9
Moisture
6/9
Nutrients
1/9

Taxonomy resolved against GBIF.

Questions people ask

Will this grass grow in my garden?
It prefers acidic, damp, and nutrient-poor soil, so it may struggle in typical fertile garden beds.
Does it need to be mowed?
No, it is a slow-growing, low-stature grass that does not require regular mowing.

Where the name comes from

The genus name Nardus comes from the Greek word for a fragrant ointment, though this plant lacks that scent. The specific epithet stricta refers to the stiff, upright growth habit of the leaves.

Good to know

  • It is commonly known as mat grass because it forms dense, tough mats that exclude other plants.
  • The plant is highly resistant to grazing, which allows it to dominate overgrazed pastures.
  • It thrives in acidic, waterlogged soils where few other grasses can survive.

Also in

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This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.