SouWest Pasture Mix

The perfect mix, combining productivity with diversity

In stockDownload tech sheet

Adaptable and diverse mix across a wide range of soil types. A blend of annual and perennial ryegrasses, black and white seeded sub clovers, and Balansa, Persian, Crimson and Arrowleaf clovers. Ideal mix for dryland sowing. Can be managed for seed set, providing pasture over subsequent years. A good option for farmers pursuing regenerative agriculture practices, with its diversity in the mix. Suited to grazing, silage or hay.

Key attributes

  • The original and WA's best known and grown mix
  • Annual and perennial ryegrasses with sub and aerial clovers
  • Ideal mix for dryland sowing
  • Balanced pasture through the growing season
  • Diversity suits regenerative agriculture practices
  • Can regenerate into the following years

Mix components

Formulation 2026

Component
A mid-maturing, deep rooted diploid perennial ryegrass with strong rust resistance and persistence, making it a suitable option for medium rainfall zones. Produces high quality feed during winter and spring and gives the pasture a good chance of finishing strong in a variable season.
High quality, high yielding and long growing season. Excellent vigour with high stress and disease tolerance.
The diploid addition provides greater adaptability with high winter and early spring production, and being a shorter season variety complements the Abundant for earlier productivity.
Black & White Seeded Subterranean Clovers
Black and white seeded subterranean clovers will produce across a wide range of soils and farming systems.
Aerial Seeded Clovers
Arrowleaf, Balansa, Crimson and Persian clovers provide a continuity of early and late feed.

*Occasionally some varieties in our mix will be replaced with a like-for-like variety where the original is not available or not easily accessible. Varieties in the mix will be specified on the bag label.

About this seed blend

SouWest Pasture Mix is the original and WA's best known and grown mix, proven year-in, year-out. It is ideally suited for farmers looking for a specialty blend of ryegrass and clover that will provide a balanced pasture during the growing season.

SouWest contains proven varieties that have been selected and developed to perform in our unique Western Australian environment. It is suited to a wide range of farming systems, soil types and conditions, and where managed appropriately should also continue to provide high quality pasture into the following years.

Arrowleaf, Balansa, Crimson and Persian clovers provide a continuity of early and late feed, and the shorter season Dargo complements Abundant for earlier productivity.

Planting & grazing notes

Optimal sowing time is autumn to winter. Cultivate or spray out any existing pasture or persistent weeds immediately before planting, and prepare an optimal seed bed, applying lime or gypsum if required. Ensure you have adequate soil moisture with the possibility of follow up rain; if dry seeding for early production, make sure paddocks are clean of weeds and you have assessed the risk of a false break. Plant as shallow as possible with good seed to soil contact. Increased sowing rates and fertiliser will encourage interplant competition during establishment, offering earlier grazing and higher dry matter production. Once established, ensure plants are not prone to pulling, then graze to 8–10cm high to increase tiller density. Do not over graze. Apply a rotational grazing program through winter and spring, and cut mid spring for silage or late spring for hay.

Disease & pest resistance

Dunstan Perennial Ryegrass has strong rust resistance.

Stand life

Lock up and graze through winter and early spring, then allow the paddock to run to seed in spring in the first year. This provides the following years' regeneration, and if managed well and locked up annually to seed, SouWest should continue to provide high quality pasture into subsequent years.

Carbon Farming & Pasture Diversity

Carbon farming offers farmers the opportunity to improve soil health, build soil carbon and support more sustainable farming systems. Many of IH Seeds pasture mixes feature a diverse range of grasses, legumes and herbs that can support productive pastures, encourage deeper root growth, and contribute to soil carbon sequestration. Diverse pastures may help farmers meet the requirements of eligible carbon farming projects under Australia’s Emissions Reduction Fund (ERF), with the potential to earn Australian Carbon Credit Units (ACCUs) where approved methods and eligibility criteria are met.

How it's sold

FormPackStatus
BioNPK-S coated25 kgIn stock
SouWest Pasture Mix — gallerySouWest Pasture Mix — gallerySouWest Pasture Mix — gallery

FAQs

What's a good all-round pasture mix for dryland grazing in the South West?

We recommend our SouWest Pasture Mix, a diverse blend of annual and perennial ryegrasses, black and white seeded sub clovers, and Balansa, Persian, Crimson and Arrowleaf clovers. It is ideal for dryland sowing on sandy to heavy soils with pH 5.0+, and suits grazing, silage or hay.

I want a pasture that keeps coming back year after year without resowing. What should I use?

Our SouWest Pasture Mix is a great option for farmers wishing to pursue regenerative practices with its diversity in the mix. It can be managed for seed set, so it keeps providing pasture in following years. Lock it up in late spring and let it run to seed. The perennial ryegrass component, Dunstan Perennial Ryegrass, is deep rooted with strong persistence, and the sub clovers and aerial seeded clovers have the ability to regenerate from seed if allowed to seed set.

How much rainfall do I need for a ryegrass and sub clover pasture mix?

Our SouWest Pasture Mix is recommended for areas with 500mm+ rainfall. It suits sandy to heavy soils with pH 5.0 or higher (CaCl2) and is best sown in autumn, with adequate soil moisture and the possibility of follow-up rain. Talk to us if you are in a marginal rainfall zone.

How deep and how heavy should I sow a ryegrass and clover pasture?

For our SouWest Pasture Mix we recommend 15 to 25 kg/ha. Ensure you have adequate soil moisture with the possibility of follow up rain. When planting for early production, it is recommended to dry seed prior to the break but ensure paddocks are clean of weeds and competitive grasses and you have assessed the liability factors i.e., in case of false breaks. Choose the right sowing method to ensure good seed to soil contact. Plant as shallow as possible. Increased sowing rates and fertilizer, will encourage interplant competition during establishment, offering earlier grazing and higher dry matter production. Have a soil test done to see what needs corrected in your soil. Reduce competition and ideally cultivate or spray out existing pasture / persistent weeds immediately before planting. Prepare an optimal seed bed and apply lime or gypsum if required. Clover seed is small, so deep sowing reduces establishment.

When should I first graze a new ryegrass and clover pasture?

For our SouWest Pasture Mix, graze lightly once plants are anchored, to 8 to 10cm, to increase tiller density without overgrazing. Then use rotational grazing through winter and early spring then allowing it to run to seed in spring for the 1st year. This will provide the following years regeneration and if managed well and locked up annually to seed, SouWest should continue to provide high quality pasture in years to come.

I want a diverse pasture for regenerative agriculture. What seed mix should I look at?

We recommend our SouWest Pasture Mix. It combines annual and perennial ryegrasses with black and white seeded sub clovers and Balansa, Persian, Crimson and Arrowleaf clovers, a diversity that suits regenerative agriculture practices. An ideal mix for dryland sowing on sandy to heavy soils and can be grazed, cut mid spring for silage or late spring for hay. Lock up and “reap the benefits” by grazing through winter and early spring then allowing the paddock to run to seed in late spring for the 1st year. This will provide the following years regeneration and if managed well and locked up annually to seed, SouWest should continue to provide high quality pasture into subsequent years. We also have other regenerative pasture options such as Self Regeneration Mix, Nitro Mix, Interow Mix etc

Which clovers give early and late feed in the same paddock?

Combining sub clovers with aerial clovers like Balansa, Persian, Crimson and Arrowleaf spreads production across the season. Our SouWest Pasture Mix includes all of these, with black and white seeded sub clovers for a wide range of soils. It flowers between August and November.

What ryegrasses are in SouWest Pasture Mix?

SouWest Pasture Mix contains Dunstan Perennial Ryegrass, which is mid-maturing, deep rooted and rust resistant, plus Abundant Tetraploid Annual Ryegrass and Dargo Diploid annual Ryegrass. Abundant is mid maturing and gives exceptional plant vigour, high forage quality and when managed well can provide optimal full season production, while Dargo adds earlier productivity with high winter and early spring yields. Together they give a spread of growth from winter into late spring.

SouWest Pasture Mix vs Self Regeneration Mix?

SouWest Pasture Mix suits higher rainfall areas of around 500mm+ and combines annual and perennial ryegrasses with many clovers. Self Regeneration Mix suits lower rainfall of around 350mm+ and is built on the ARGT-resistant Safeguard Diploid Annual Ryegrass to reduce the risk of ARGT poisoning. Choose based on rainfall and ARGT risk. Both are regenerative.

Can I make silage from SouWest Pasture Mix?

Yes. SouWest Pasture Mix suits grazing, silage or hay. We recommend cutting in mid spring for silage and late spring for hay. If you want the pasture to regenerate the following year lock up the paddock in late spring and allow it to run to seed. Have a fertiliser plan as paddocks grazed or cut regularly need to have regular fertiliser to build bulk.