Our extensive seed range offers outstanding results to meet the demands and rigours of Australian agriculture. Find the right solutions for your enterprise with S&W Seed Company.

Jivet Tetraploid Annual Ryegrass


Lolium multiflorum/westerwolds

Dairy, beef and sheep. Short-term winter and spring feed.

Tetraploid annual ryegrass that maximises winter and spring production, with the extra benefit of late spring quality and growth

  • Rapid establishment
  • Fast regrowth during winter
  • Extended spring growth
  • Increased winter and spring feed
  • High stock performance
  • Extended production window
  • Heading date +18 days
Seed Agronomy Table
Heading Date + 18 days
Life Span < 1 years
Seeding Rate - Dryland (kg/ha) 10 - 15
Seeding Rate - High Rainfall/Irrigation (kg/ha) 25 - 30
Hard Seed Level 1 = Least Hard 10 = Most Hard • Burr Burial Strength 1 = Very Weak 10 = Very Strong
Establishment Guarantee

At S&W Seed Company Australia we’re so confident about our seed genetics and seed quality, we will replace seed at half the original purchase price if it fails to establish satisfactorily in the first thirty days*  Read more

Enterprises for this seed

  • Very strong cool season growth and good nutritive value


  • Short-lived

Plant Description
  • Annual.

  • Hairless; blades up to 400 times 12 millimetres; young leaves rolled in bud.

  • Spike up to 30 centimetres long; spikelets edge-on to the rachis which is recessed opposite each spikelet; 10 to 20 florets/spikelet, laterally flattened up to 25 millimetres long. Straight, fine awn up to 10 millimetres.

  • 230,000 to 250,000 tetraploid.

Pasture Type and Use

Short term pasture and high-yielding silage/hay crop.


Greater than 600 millimetres+.


Medium-heavy texture; high fertility.


Cold tolerant.

  • Annual ryegrass and forage cereals.

  • Medic, red and persian clovers. Other: Forage brassicas.

  • 10 to 15 kilograms per hectare.

  • 20 to 30 kilograms per hectare.

  • Autumn.

  • P and N.

  • Especially P and N.

  • Well suited to fodder conservation. Strip or rotational grazing facilitates efficient utilisation and maximum regrowth. Graze at 2.5 to 3 leaf stage.

  • Will spread from seed; seed set will occur if ungrazed/not cut and this will be associated with a substantial trade off in nutritive value.

  • Low unless allowed to set seed.

  • Red and black-headed cockchafer, black field cricket, white-fringed weevil, African black beetle, corbies, underground grass caterpillar.

  • Rust.

  • Glyphosate.

Animal Production
  • High.

  • Palatable.

  • High winter growth; rapid spring growth preflowering early summer.

  • The ryegrass endophyte (Neotyphodium lolii) is not present in Italian ryegrass.

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