Subterranean clover is an important annual pasture legume.   A pure stand of sub clover under ideal growing conditions has the potential to set up to 1500 kg/ha seed. Typically sub clover seed crops yield 600–1000 kg seed/ha, while clover growing in grassy pasture will set between 200 and 500 kg seed/ha.

Clover seed yields are maximised by: controlling weeds, ensuring optimum nutrition and soil pH, limiting moisture stress during seed filling, either by irrigation or by growing varieties whose maturity matches the growing season of the district. To promote seed yield once flowering commences, either remove stock or greatly reduce the stocking rate.