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Italian rye-grass

Lolium pratense · Poaceae

The gardener's calendar

The right move for September

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

JFMAMJJASOND Planting

ID card

Foliage
Semi-evergreen, light to medium green
Flowering
Spring to summer (April to July)
Adult size
30 to 60 cm in height
Growth
Fast
Hardiness
Very hardy (-15°C and below)
Origin
Temperate Europe
Soil type
Moist, well-drained, fertile soils
Exposure
Full sun to partial shade

Care

Watering

Keep the soil regularly moist, especially during germination and dry periods. Moderate moisture is ideal for this meadow grass. Reduce watering in winter once the plant is established. Avoid prolonged waterlogging which can promote fungal diseases.

Exposure

Choose full sun for vigorous growth and optimal density. The plant tolerates partial shade but will develop a less dense habit. Ensure good air circulation to prevent stagnant humidity at the leaf level.

Cutting and Mowing

Mow once height exceeds 10 to 15 cm if you're aiming for a dense and regular meadow. Regular cutting encourages tillering (emission of new stems) and strengthens the plant. In late summer, leave some seed heads for natural reproduction.

Soil

Prepare well-prepared soil, rich in organic matter and well-drained. This grass prefers slightly moist loamy or clay soils. Incorporate compost or organic fertilizer before planting for good establishment.

Fertilizing

Apply balanced fertilizer in spring to support vegetative growth. Moderate application is sufficient if the soil is fertile. In natural meadows, annual nitrogen application promotes density and foliage color.

Diseases and Pests

Watch for fungal diseases (rust, powdery mildew) in conditions of excessive moisture and stagnant air. Good ventilation and watering at the base reduce risks. Pests remain rare on this robust and well-established grass.

Did you know?

Perennial ryegrass (Lolium perenne) is one of the most cultivated forage grasses in Europe for centuries for feeding cattle and sheep. The name "rye-grass" may come from the Latin "rigidus" (stiff), referring to its characteristic upright habit. It is a key species for the biodiversity of natural and semi-natural meadows.

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.