Wahlenbergia gracilenta

Wahlenbergia gracilenta, commonly known as annual bluebell, is a small herbaceous plant in the family Campanulaceae native to Western Australia. The erect to ascending annual herb typically grows to a height of 0.05 to 0.4 metres (0.2 to 1.3 ft). It blooms between May and December producing white-blue flowers. The species is found on hillsides, amongst granite outcrops and in damp depressions in the Mid West, Wheatbelt, South West, Great Southern and Goldfields-Esperance regions of Western Australia where it grows in sandy-loamy-clay soils....read more on Wikipedia.