Lolium perenne

Perennial ryegrass

The Fantastic PAN-European Variety!

Has Proved to Cope With all Kinds of Weather
CALIBRA has proved to do what no variety has ever done before: To be very productive under a long growing season as in UK, to be very disease resistant especially against rust in France and to be very winterhardy even in Russia!

A Very High Digestibility and Sugar Content
The digestibility of CALIBRA is high, which is related to the high sugar content of the variety.

Very High and Stable Yields
Good spring growth combined with intermediate heading is useful for early production. The regrowth and production over summer is very high. This places CALIBRA among the top varieties.
  • CALIBRA copes with all climates
  • CALIBRA has a high sugar content
  • CALIBRA is highly digestible
  • CALIBRA yields very high and stable


Scale 1-9, where 9 = best or most pronounced

Ground cover
Rust tolerance
Salt tolerance
Winter hardiness
Spring growth

Relative drymatter yield in official trials

Source: NIAB official results UK

Sugar content measured at DLF

Source: DLF laboratory results (St. Heddinge, Denmark)
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