Annual rye-grass (Lolium rigidum)

Annual rye-grass

Also known as: Stiff darnel, Rigid ryegrass, Wymmera ryegrass

Annual rye-grass (Lolium rigidum) is an annual grass that has commercial value and is grown for animal fodder. However, this plant has become a crop-threatening invasive weed in certain regions. The plant's seeds are also subject to a bacterial infection which can produce corynetoxins that are toxic to animals.

Scientific classification

Species

Annual rye-grass (Lolium rigidum)

Grasses, sedges and allies

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Annual

Lifespan

30 cm

Flower Size

Yellow, Green, Purple, Brown

Flower Color

Summer dormancy

Dormancy

Semi-evergreen

Leaf type

20 - 35 ℃

Ideal Temperature

Images of Annual rye-grass

Distribution of Annual rye-grass

Distribution Map

Annual rye-grass is a plant native to a broad region encompassing parts of Southern Europe, North Africa, the Middle East, and Western Asia. It has been introduced to areas across several continents, notably in temperate zones, which include parts of the South Pacific, North and South America, as well as Southern Africa and various regions within Europe itself.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Cultivated land

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Annual rye-grass

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Water: Thriving in temperate climates, annual rye-grass prefers consistent moisture, requiring weekly watering without waterlogging. As an annual grass, it grows well outdoors with natural rainfall but is also suitable for container growth, where hydration levels can be managed effectively.

Pruning: Annual rye-grass flourishes with early to late spring pruning, ideally trimmed to 5-7.5 cm (2-3 inches) to encourage denser growth and control spread. Regularly remove dead foliage to promote health, align with growth cycles, and manage pests for robust and attractive growth.

Propagation: Annual rye-grass is a fast-growing grass ideal for turf and pasture. Propagation needs a well-prepared seedbed and moisture, with seeds sown at 1-2 cm depth. Germination takes 7-14 days, and fertile soil combined with balanced fertilizer supports vigorous growth.

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Learn More About Annual rye-grass

Sunlight Requirements

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