Prospect AR37

  • Prospect has been bred from a diverse range of genetic material
  • Diploid ryegrass with a +12 days heading date
  • Strong all-year-round performance with high drymatter yields
  • A dense, fine-leaved cultivar with high production, suited to dairy or sheep and beef systems
  • Bred and selected with the AR37 novel endophyte

Grasslands Prospect is a new-generation perennial ryegrass that has been bred from a combination of genetics derived from late-heading north-west Spanish perennial ryegrass and traditional mid-season heading perennial ryegrasses. Part of its genetic selection came from plants selected for Aluminum tolerance. Due to Prospect’s flowering date of +12 days, its peak spring growth is situated between a late-heading ryegrass such as One50 and mid-season heading perennial ryegrass like Samson.

Prospect is characterised by a dense fine-leaved habit. One of its main strengths is its reliable all-year-round production.

Prospect has shown excellent adaptation to a wide range of environments ranging from hill country to highly productive dairy pastures.

Prospect’s strong seedling vigour and high autumn yields with solid year round performance provides an ideal combination for most ryegrass zones. The densely tillered, fine leaf nature of Prospect’s diploid characteristics enable it to recover from hard grazing once established which has led to good persistence under tough conditions.

Prospect is available with AR37*endophyte.

*Animal Health: Although AR37 does not produce Lolitrem B it can cause ryegrass staggers. Trials have shown that on average the frequency, duration and severity of ryegrass staggers is less than for standard endophyte. However on occasions, sheep (and potentially other animals) grazing AR37 ryegrass may be severely affected. After many years of use, ryegrass staggers have not been observed in dairy cows on-farm to date. AR37 varieties should not be used on properties grazing either deer or horses. For more information on animal health and production information please visit

Product Specifications

Ploidy: Diploid
Heading Date: Late
Endophyte options: AR37 endophyte
Sowing rate: 18-20 kg/ha with clovers and herbs
When to sow: Autumn and spring
Prime growing times: Summer, autumn and winter
Best grazing practice: Rotational grazing
Sow with: Tribute white clover
Prestige white clover
Tonic plantain
Choice chicory
Colenso red clover

Prospect has been bred, selected and successfully tested as a perennial and will function as a perennial ryegrass. Due to a small number of tip awns Prospect  is certified as Lolium boucheananum.