Intermediate perennial ryegrass - diploid

  • Intermediate diploid perennial ryegrass which was bred in Northern Ireland by AFBI and first officially listed in 2020

  • Performs very well under both cutting and grazing management schemes with no preference for either system

  • Exceptional variety which provides high yield of high-quality forage and good quality. Early and late season growth under both management systems means Strangford will provide excellent shoulder growth at either end of the growing season.

Species: Lolium Perenne

Officially listed in: Scotland

Heading dates: Scotland REE 35

Ploidy: Diploid

Bred in: Northern Ireland

Most suited to: Any medium - long term grazing and/or cutting ley where high yields and early growth are essential



Despite being one of the earliest in the group, Strangford provides high quality forage from both silage and grazing management. Being relatively early, cutting to the appropriate growth stage is advised to optimise the variety’s quality and yield balance for silage, especially at first cut.


Other Attributes

Strangford has good disease resistance scoring 8.4 for Mildew and 5.9 for Crown Rust. It also has good ground cover and winter hardiness.


Being a diploid, you should expect an average of 600,000 seeds per kilogram and a slightly more prostrate growth habit. Strangford therefore brings ground cover and a higher plant population than tetraploid counterparts to mixtures.


Before recommendation, Strangford has been extensively trialled across over 10 locations in the United Kingdom to gather data on its performance in multiple climatic conditions.


Strangford was bred in Northern Ireland at the Agri-Food and Biosciences Institute (AFBI) by the now retired grass breeder David Johnston. The variety was named after Strangford Lough, a large sea loch in County Down which covers around 150km2 and is surrounded almost entirely by the Ards peninsula.



DESCRIPTION: Dark green, densely or loosely tufted. Folded shoot and leaves.

FLOWERING HEAD: Flattened spike with the spikelets arranged alternately on opposite sides of the stem. The spikelets are stalkless with the narrow, rounded face fitting against the stem.

LEAF BLADE: Ribbed on upper surface, smooth and shiny underside. Red at base of stem.

AURICLES & LIGULE: Auricles are usually well developed, up to 1/12 of an inch (2 mm) long, or are sometimes lacking.



Intermediate perennial ryegrass