Our Products

Synergy Seeds supply a combination of high-grade temperate legumes, grasses, cereals, tropical and vetch varieties. We supply both proprietary and public varieties, so that our customers can meet the demands of their markets.


Sub Clover
Subterranean/Sub clover (ssp. yanninicum)

TRIKKALA is a mid-season (112 days to flower) variety, with low hard seed levels, of the waterlogging-tolerant “white-seeded” yanninicum subspecies of sub clover.

It is generally suited to areas with a minimum of 450mm annual rainfall, an approximate minimum 6 month growing season. It is well adapted to moderately acidic (pH CaCI2 4.5-6.5), loamy and clay soils with good water retention, poor drainage and areas subject to intermittent waterlogging.

TRIKKALA’S formononetin level is very low. TRIKKALA was not selected for red-legged earth mite tolerance. TRIKKALA is suitable for permanent and semi-permanent pastures. Released in 1976, TRIKKALA offered a low formononetin alternative to Yarloop. Since then, other mid-season Yanninicum varieties have been released, with different levels of hard seed, disease resistance and productivity

TRIKKALA is tolerant of clover scorch and resistant to root rot.

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Growing Conditions

  • Soil Type

    Trikkala prefers sandy loams to clays of moderate acidity and good water holding capacity. Highly tolerant of winter waterlogging

  • Sowing Rate

    Pure 5 - 10kg/ha Dryland
    Pure 11 - 15kg/ha Irrigated

  • Rainfall


  • pH

    4.5 - 6.5 (CaCl2)

  • Inoculant

    Group C Rhizobium


  • Early – mid season 112 days to flowering
  • White Seeded type
  • Tolerant to waterlogged or poorly drained soils
  • Suited to flood irrigation pasture systems
  • Excellent seedling vigour for quick establishment
  • Good forage production
  • Strong seeder for good regeneration

Get in touch

For any enquiries, our team will be more than happy to assist you.

Please complete this form, and we will respond as soon as possible. You can also email our Adelaide Head Office.