It is a small, erect shrub with trifoliate leaves and pink or white flowers with four petals and eight stamens.

Boronia edwardsii is an erect, many-branched shrub and which grows to a height of 50–100 cm (20–40 in) with its branches covered with soft, downy hairs.

The flowers are arranged singly or in groups of 3 in leaf axils or on the ends of the branches.

Flowering occurs mainly from August to October and the fruit matures between September and January.

[2][3] Boronia edwardsii was first formally described in 1863 by George Bentham from a specimen collected by "Edwards" near Mount Barker and the description was published in Flora Australiensis.