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Brachypodium pinnatum

Brachypodium pinnatum · Poaceae

The gardener's calendar

The right move for September

Ideal time to plant brachypodium pinnatum: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Deciduous to semi-evergreen depending on climate
Flowering
June to July, golden feathery spikes
Adult size
60 to 100 cm tall
Growth rate
Moderate to fast
Hardiness
Very hardy, down to -15 °C
Origin
Central and Mediterranean Europe
Soil type
Well-drained, calcareous, drought-tolerant

Care

Watering

Feathered brachypodium is very tolerant of drought once established. Water regularly for the first few weeks after planting, then gradually reduce. In dry climates or during prolonged heatwaves, occasional watering promotes vigor.

Exposure

Place this grass in full sun to optimize its density and the golden coloring of its spikes. It tolerates partial shade but becomes less vigorous and less floriferous in such conditions.

Pruning and maintenance

Leave stems and leaves in place over winter to protect the clump and enhance its winter appearance. Prune in spring (March-April), before new growth, to 10-15 cm from the ground using a brush cutter or sturdy shears.

Soil

Feathered brachypodium prefers calcareous or neutral, well-drained soils. It adapts to poor and rocky terrain, making it ideal for slopes and difficult areas. Avoid compacted and waterlogged soils.

Fertilizer

No fertilizer is necessary on poor soil. On rich soil, excess nitrogen can promote etiolation. A minimal application of compost in spring is sufficient.

Diseases and pests

Feathered brachypodium is very hardy and rarely susceptible to diseases when planted in the right conditions (good drainage, sunny exposure). Waterlogged soil can cause rot; improve drainage if excessive moisture occurs.

Did you know?

Feathered brachypodium is a perennial grass highly valued by ecological landscapers for its ability to stabilize slopes and embankments without intensive maintenance. Its golden spikes persist long into winter, creating a remarkable landscape effect. This plant is also prized in phytoremediation, as its deep roots help prevent erosion and structurally enrich depleted soils.

Where to buy it

Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.

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Tips generated and checked by Viridia — adapt them to your local climate.