tetraploid italian ryegrass

  • Quick out of the ground – fast time to first grazing
  • Ideal for undersowing into those opened up and thinned out pastures, as part of a pasture mix or sown as a pure sward
  • Exceptional summer yield and quality (low aftermath heading)
  • Strong second year production – better than traditional Italians, offering feed for longer
  • Exceptional rust tolerance for better dry matter yields and consumption by stock
Farm Type
  • Sowing Rate 22 kg/ha
  • Heading Date Late - 17 days later than Nui
  • Tetraploid/Diploid Tetraploid

Lush tetraploid Italian ryegrass provides exceptional summer yield and quality (low aftermath heading). Lush has strong second year production – better than traditional Italians, growing luscious feed for longer. Lush has exceptional rust tolerance for better consumption by stock. Rarely has an Italian tetraploid ryegrass shown such superb summer feed quality, high yield potential and persistence.

Sowing and Establishment

Lush AR37 is perfect for undersowing into dairy pastures and intensive sheep/beef systems or as part of a pasture mix. For undersowing, Lush AR37 should be sown at a minimum of 14 kg/ha using Superstrike® treated seed.

Pasture Life: 18-24 month option


Dry Matter Production Comparison of Lush AR37 versus Feast® II (Expressed as a Percentage of Feast II)

Year One


Establishment Winter Spring Late Spring Summer Autumn Total
Lush AR37 102 103 95 99 118 133 106
Feast II 100 100 100 100 100 100 100

Year Two

  Winter Spring Late Spring Summer Autumn Total
Lush AR37 105 97 106 146 163 114
Feast II 100 100 100 100 100 100

Data are the mean from six completed trials sown in Puturau, Waikato (3) and Lincoln, Canterbury (3). Completed trials ran for two years. Data was analysed using Genstat.


Lush tetraploid Italian ryegrass comes with AR37 endophyte.* AR37 endophyte has been shown to provide superior pest protection from Argentine Stem Weevil, Pasture Mealy Bug, Black Beetle, Root Aphid and Porina in both diploid and tetraploid long rotation and perennial ryegrasses. Lush AR37 showed greater persistency than Feast® II in PGG Wrightson Seeds trials in both Canterbury and Waikato.

*It should be noted that Lush AR37 may cause ryegrass staggers. For more information on AR37 visit the website linked below. 

PGG Wrightson Seeds Sales Agronomist Kyle Gardyne and Farm Manager Tom Buckley inspecting a Lush AR37 paddock at Owl Farm, Waikato. 

Lush AR37 at Owl Farm

Tom has grown Lush AR37 in both undersowing situations and as a pure sward and it has delivered a lot of quality feed. "It accumulates bulk volume without compromising on quality (even in January) - and the cows love it!" says Tom.

Tom Buckley, Waikato