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Lolium giganteum

Lolium giganteum · Poaceae

The gardener's calendar

The right move for September

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

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ID card

Family
Poaceae (grasses)
Type
Annual or biennial grass
Adult size
60 to 120 cm in height
Foliage
Deciduous, tender green to glaucous
Flowering
Summer (June to August), linear spikes
Growth
Fast
Hardiness
Hardy, tolerates temperate and cold climates
Origin
Mediterranean, temperate regions of Europe

Care

Sunlight

Choose a sunny to partially shaded location, ideally with 6 hours of direct sun per day. This grass tolerates light shade but thrives best in full light for vigorous development and attractive foliage color.

Soil and drainage

Lolium giganteum adapts to most soils but prefers well-draining, loose, and moderately fertile ground. Avoid compacted soils and chronic waterlogging. Adding compost to the surface before planting improves rooting.

Watering

Water regularly during the growing season, especially in the first weeks after planting. Once established, the plant tolerates moderate drought. Reduce watering in autumn-winter to allow the plant to go dormant.

Fertilizing

A balanced fertilizer in spring stimulates growth. Apply fertilizer low in excess nitrogen, which would promote overly lush foliage at the expense of robustness. In poor soil, a light addition of organic matter is sufficient.

Pruning and maintenance

No strict pruning needed. Light mowing or cutting after flowering extends the ornamental appeal. Let the spikes develop if you want to enjoy their aesthetic effect, or cut them back to keep the plant in check.

Diseases and pests

Very hardy and resistant to common diseases. Good drainage and air circulation prevent rare rots. Rarely subject to pest attacks in temperate climates.

Did you know?

Lolium giganteum long intrigued botanists because of its slender habit and particularly long spikes compared to other Lolium species. It was classified and reclassified several times in the 19th century, notably due to its resemblance to other Mediterranean fescues, before finally being confirmed as a distinct species adapted to the dynamics of dry Mediterranean grasslands.

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.