The sweet pittosporum is generally a hairless tree, except for a light pubescence on the new twigs and flower stalks. It grows 6-8 m tall, but can exceptionally reach 15 m. It has a dark greyish bark covered in scales that on young branches become deep green with scattered white spots. It may sometimes be confused with the laurel Laurus novocanariensis, but it can be easily differentiated by the entire margin of the leaves and their wavy blades, as well as the resinous scent that they give off when rubbed. The leaves are simple, persistent, somewhat leathery and shiny. They are alternate and sometimes grouped in a spiral at the ends of the branches. The blade is ovate-lanceolate or elliptical and up to 15 cm long.
The flowers are borne in compact clusters and give off an intense fragrance similar to orange blossom. They have 5 yellowish-white petals. These are quite thick and partially joined towards the base, forming a tube where nectar accumulates. The fruits are globose, orange capsules. When ripe the two leathery sides, or valves, open exposing very striking seeds covered in a reddish or blackish seed coat (aril). These are very sticky as they are immersed in a viscous-resinous substance that favours their dispersal.
