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Flattened meadow-grass

Poa compressa · Poaceae

The gardener's calendar

The right move for September

Ideal time to plant flattened meadow-grass: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.

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ID card

Foliage
Evergreen
Flowering
Spring to early summer (May-July)
Adult size
15 to 40 cm in height
Growth
Fast
Hardiness
Very hardy, down to -25°C
Origin
Temperate Europe and Asia
Soil type
Well-drained, tolerates compacted soils
Exposure
Sun to partial shade

Care

Watering

Compressed bluegrass is very drought-tolerant once established. During the active growing season (spring), water moderately if rainfall is absent. In summer and winter, occasional watering is sufficient. Avoid excess moisture, which promotes fungal diseases.

Exposure

This grass adapts well to both sun and partial shade. It tolerates even partially shaded areas. Bright exposure promotes denser growth and better foliage coloration.

Soil and planting

Compressed bluegrass accepts poor, compacted, and even alkaline soils. Well-drained soil is preferable to prevent rot. It requires no rich amendments and thrives in difficult conditions.

Pruning and maintenance

Cut the grass close to the ground in spring (February-March) to remove old foliage. In lawns or meadows, regular mowing during the growing season maintains density. No fine pruning is necessary as an ornamental plant.

Fertilization

No fertilization is necessary for compressed bluegrass except in intensive lawn situations. A light nitrogen boost in spring can promote regrowth, but this grass thrives without added nutrients.

Diseases and pests

This species is robust and rarely affected by pests. In very humid conditions, fungal diseases (rust, powdery mildew) may occasionally appear. Improve air circulation and reduce moisture to prevent problems.

Did you know?

Compressed bluegrass is named for its spikelets that are flattened and compressed laterally, unlike other Poa species. It's a pioneer grass widely used in earthworks and ecological restoration because it rapidly colonizes disturbed, poor, or compacted soils while being extremely frugal in water and nutrients.

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.