Boronia spathulata is a glabrous shrub that grows to a height of about 1 m (3 ft 3 in) and has well-spaced, narrow elliptic to broadly egg-shaped leaves that are 10–20 mm (0.39–0.79 in) long. Leaves near the ends of the branchlets are usually more or less cylindrical. The flowers are arranged in cymes that have a short peduncle, the individual flowers on a red pedicel that has small bracts at its base. The side flowers have a pedicel 3–4 mm (0.12–0.16 in) long. There are four triangular to egg-shaped sepals 2.5–4 mm (0.1–0.2 in) long and four pink, egg-shaped petals 6–9 mm (0.2–0.4 in) long. The eight stamens are hairy with a small white tip on the anther and the stigma is only slightly larger than the style. Flowers are present in most months.
This boronia grows in sand near swamps or rivers and in jarrah forest. It occurs between Perth and Augusta and east to Israelite Bay.
Boronia spathulata is listed in the following regions: