Annual tetraploid Ryegrasses

IH Seeds annual tetraploid ryegrasses: 5 lines in our range. Our annual tetraploid ryegrasses range has 5 lines, covering annual types. Individual lines suit areas from 450 mm up to 550 mm or more of annual rainfall. Soils range from sand to heavy. Common uses are grazing, hay and silage. Suitable livestock include dairy, beef, sheep and equine.

Annual tetraploid

In stock

Abundant Tetraploid Annual Ryegrass

Annual tetraploid

Year-on-year top performer from Esperance to Perth

TetraploidMid500 mm+

In stock

Amazon T Tetraploid Annual Ryegrass

Annual tetraploid

Quick to establish, outstanding rust tolerance

TetraploidMid-late500 mm+

In stock

Astound Tetraploid Annual Ryegrass

Annual tetraploid

Excellent winter and early spring production

TetraploidMid-late450 mm+

In stock

Evoke Tetraploid Annual Ryegrass

Annual tetraploid

Establishes quickly with improved later season growth

TetraploidLate550 mm+

In stock

New Tetila Tetraploid Annual Ryegrass

Annual tetraploid

High feed quality, good growth late autumn to early spring

TetraploidEarly500 mm+

Name	Sub-category	Stock	Min Rainfall	Soil Range	pH	Sowing Rate	Tolerances
Abundant Tetraploid Annual Ryegrass	Annual tetraploid	In stock	500 mm+	S–H	5 CaCl₂	25–35 kg/ha	W
Amazon T Tetraploid Annual Ryegrass	Annual tetraploid	In stock	500 mm+	S–H	5 CaCl₂	25–35 kg/ha	Mild P / W
Astound Tetraploid Annual Ryegrass	Annual tetraploid	In stock	450 mm+	S–H	5 CaCl₂	25–35 kg/ha	W
Evoke Tetraploid Annual Ryegrass	Annual tetraploid	In stock	550 mm+	S–H	—	25–35 kg/ha	W
New Tetila Tetraploid Annual Ryegrass	Annual tetraploid	In stock	500 mm+	S–H	5 CaCl₂	25–35 kg/ha	W / Mild S

Choosing Annual tetraploid Ryegrasses

Our annual tetraploid ryegrasses range has 5 lines, covering annual types. Individual lines suit areas from 450 mm up to 550 mm or more of annual rainfall. Soils range from sand to heavy. Common uses are grazing, hay and silage. Suitable livestock include dairy, beef, sheep and equine.

Type & persistency: Annual
Rainfall: 450–550 mm+ annual rainfall, depending on variety
Soil range: Sand to Heavy
Soil pH: pH 5+ (CaCl₂)
Sowing rate: 25–35 kg/ha
Tolerances: Waterlogging (5), Salinity (1), Low pH (1)
End use: Grazing (5), Hay (5), Silage (4)
Livestock: Dairy (2), Beef (2), Sheep (2), Equine (1)
Ploidy: Tetraploid
Heading date: Early, Mid, Mid-late, Late

Compare annual tetraploid ryegrasses at a glance

Annual tetraploid Ryegrasses: key differences between lines
Product	Persistency	Ploidy	Heading date	Min rainfall
Abundant Tetraploid Annual Ryegrass	Annual	Tetraploid	Mid	500 mm+
Amazon T Tetraploid Annual Ryegrass	Annual	Tetraploid	Mid-late	500 mm+
Astound Tetraploid Annual Ryegrass	Annual	Tetraploid	Mid-late	450 mm+
Evoke Tetraploid Annual Ryegrass	Annual	Tetraploid	Late	550 mm+
New Tetila Tetraploid Annual Ryegrass	Annual	Tetraploid	Early	500 mm+

Match a paddock to the right seed with the Pasture Selector or read the seed guide. Also see all Ryegrasses, Perennial & hybrid, Annual diploid and Italian & biennial.

2026 Pasture Seed Guide

Every line in this category, with sowing rates and regional notes.

Download the 2026 Pasture Seed Guide (PDF)