Does it need much water?

No, it is highly drought tolerant once established.

When should I prune it?

You can trim back old foliage in late winter before new growth starts.

Plant guide

Esparto grass.

Macrochloa tenacissima

Pronounced mak-ro-KLO-uh ten-uh-SIS-ih-muh

Also known as alfa grass, esparto grass

Macrochloa tenacissima — Photo by Adhara Pardo (CC0) via gbif

Esparto grass is a tough, perennial bunchgrass native to the Mediterranean region. It is famous for its long, flexible leaves that have been used for centuries to make cordage and paper. It thrives in hot, dry, and rocky environments.

At a glance

Care level: Easy
Plant type: Perennial grass
Light: Full sun
Indoor light: Direct sun
Water: Every 14 to 30 days
Mature size: 3 to 4 feet
Growth rate: Slow
Hardiness: USDA 8 to 10
Bloom time: Late spring to early summer

Care

Plant this grass in a spot with excellent drainage to prevent root rot. Keep an eye out for yellowing leaves which may indicate too much moisture. It is quite drought tolerant once established.

Watering: Water sparingly, allowing the soil to dry out completely between sessions.
Feeding: Apply a light, balanced fertilizer once a year in early spring.
Pruning: Cut back old, dead foliage in late winter to encourage fresh growth.
Repotting: Repot only when the plant becomes rootbound in its container.
Soil: Sandy, rocky, or poor soil
Soil pH: Neutral to slightly alkaline
Temperature: -10 to 40°C
Humidity: 20 to 50%
Drought tolerance: High
Lifespan: Perennial, typically 10 to 20 years
Deer and rabbits: High

Signs it needs repotting

Roots growing out of the drainage holes
Water sitting on the surface for too long
Growth slowing down significantly

Safety

People: There are no reports of toxicity in humans.
Children: The sharp, pointed tips of the leaves can poke small children, so it is best to plant it away from play areas.
Contact allergens: The stiff leaf blades can cause minor skin abrasions if handled without gloves.
Airborne allergens: The pollen may cause mild reactions in sensitive individuals during the flowering season.
Edibility: This grass is not intended for human consumption.

How to identify it

Tall, slender, grey-green leaves
Forms dense, tufted clumps
Produces feathery, plume-like flower stalks
Leaves are tough and fibrous

Height: 0.6 to 1.2m
Spread: 0.6 to 1m
Leaves: gray-green, silver-green, evergreen
Flowers: pale yellow, straw, 10 to 20cm

Problems to watch for

Root RotCommon
Brown Leaf EdgesUncommon
DehydrationUncommon
RustUncommon

By symptom

Plant problems by symptom

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Growing it

Propagation: seed, division
When to plant: spring, early autumn
Overwintering: Keep the soil on the dry side during winter to prevent root rot. If you live in a very wet climate, ensure the crown is protected from standing water.
In containers: It grows well in large, deep containers with excellent drainage, though it prefers being in the ground.

Division

Dig up a mature clump in early spring.
Use a sharp spade to divide the root ball into smaller sections.
Replant the divisions immediately in well draining soil.

Group this grass with other Mediterranean plants that appreciate lean soil and intense sun.

Grows well with

Lavender · They share similar needs for full sun and well draining soil.
Rock Rose · This shrub provides a nice textural contrast to the fine grass blades.
Rosemary · Both plants thrive in Mediterranean conditions and require minimal water.

Similar species

Feather Grass · It has a similar fine texture but is much smaller and less hardy.
Blue Fescue · It offers a similar clumping habit and silver foliage color.

Science

Family: Poaceae
Genus: Macrochloa
Order: Poales
Class: Liliopsida
Native range: Western Mediterranean region, including Spain and North Africa.
Conservation: It is not currently listed as endangered, though wild harvesting for fiber is strictly regulated in some Mediterranean regions.

It grows on dry, rocky slopes and limestone outcrops, where its deep root system helps stabilize the soil.

Value to wildlife: provides nesting material, offers cover for small insects
Pollinators: bees, butterflies
Uses: ornamental grass, xeriscaping, erosion control, fiber production

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 3/9
Soil reaction: 7/9
Light: 8/9
Temperature: 7/9
Moisture: 2/9
Nutrients: 2/9

Taxonomy resolved against GBIF.

Questions people ask

Does it need much water?: No, it is highly drought tolerant once established.
When should I prune it?: You can trim back old foliage in late winter before new growth starts.

Where the name comes from

The name Macrochloa comes from the Greek words for large and grass, while tenacissima refers to the extremely tough and tenacious nature of its fibers.

Good to know

It is commonly known as esparto grass.
The fibers are so strong they were once used to make ship cables.
It thrives in poor, rocky soils where many other plants struggle.
The plant forms dense, rounded clumps that sway beautifully in the wind.

Also in

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.