Locally White Clover is known to only persist under irrigated and high rainfall (+700mm) conditions. Some smaller leafed varieties have lasted for 2-3 years if conditions are favourable but generally irrigated areas are the best fit for White Clover. White Clover is slow to establish from seed and this trait has been a problem in recent years as the new ryegrass varieties tend to out compete the clover and poor clover content results. It is vital to graze the pasture early to allow light into the crop to ensure your clover can compete and thrive. Seeds per kilogram can range significantly between coated and bare seed and this can be a factor with inadequate White Clover population within a pasture.
Red Clover can be used in irrigated pasture mixes to boost summer production. Locally it has been difficult to maintain necessary levels of persistence. Strict rotational grazing practices should be followed if Red Clover is to be included in your pasture mix. Including a small amount of red clover in specialist irrigated summer crop mixes works well as red clovers thrive in these conditions.