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.