Perennial Ryegrass
Lolium perenne (lolium per)
Agricultural
Perennial ryegrass is not only a native UK species covering large areas of uncultivated ground but is far more so an important pasture grass and widely used forage plant. As the core of many pasture seed mixtures, it is often blended with other grass species such as Timothy, Fescue and/or legumes (red clover and more commonly, white clover) to maximise persistence, quality and voluntary intake of the forage produced.
On a fertile or well manured soil lolium perenne (lolium per) produces a high yield crop for grazing or cutting for hay, haylage, silage as winter feed or for herbage in managed zero grazing systems (the forage is brought to the permanently housed animals).
Cutting grass for feed at its combined peak nutritional value and maximum yield is a must. Given the unpredictable nature of the UK’s climate cutting at the best time can be a somewhat challenging task, Agricultural perennial ryegrass is therefore catagorised by heading dates (when a grass produces seeds), simplified by the prefix Early, Intermediate (Int.) or Late. The sugar content of grass falls rapidly during heading (seeding) so by combining grasses of two or more heading dates in a cutting sward ensures the period of high nutritional value will be (although marginally lower) maintained for a longer period of time at the highest yield.
There are now various other varients of Lolium per including Hybrid Ryegrass and Amenity Ryegrass
Amenity
For many years there have been selective breading programs pushing to produce shorter, denser, greener perennial ryegrass varieties which are now far removed from their original broadleaf ancestors.
Despite the fact Agricultural and Amenity Ryegrasses currently bare the same species tag ‘Lolium perenne’ (lolium per), specific varieties produce very different plants and caution should be made when selecting the correct seeds mixture for the intended end purpose. Sadly, we very often see known broadleaf, agricultural type ‘lolium per’ blended into cheap ‘Quality’ lawn mixtures. This undoubtedly promotes the unnecessary caution towards establishing perenial ryegrass in a lawn.
Not currently available as a straight