online but may be purchased in person at the nursery, see here for open times

Libertia paniculata is a lovely edging plant or ground cover for shady or damp areas, which grows to 50 or 60 cm in height. It rapidly spreads to fill an area with its strappy light green leaves, above which come stems holding the branched clusters of pretty white flowers. These have 3 large and 3 smaller petals and are about 10 to 15mm wide and set off the large upright yellow anthers.
This plant is widespread throughout NSW and flowers profusely in spring and at some times during the rest of the year. It prefers moist semi-shade, is frost-hardy and will grow in most soils. If the plant becomes untidy, it can be cut back hard and it will reshoot from underground rhizomes. 

For more information visit the PlantNET page here