Cananga odorata

The flower of this tree has a phenomenal scent. This is used in the Perfume Chanel No. 5. It should be planted near a window, possibly near a  bedroom to take full advantage of its scent at night. 

C. odorata is a fast-growing tree of the custard-apple family Annonaceae. Its growth exceeds 5 m (15 ft) per year[citation needed] and attains an average height of 12 m (40 ft). It grows in full or partial sun, and prefers the acidic soils of its native rainforest habitat. The evergreen leaves are smooth and glossy, oval, pointed and with wavy margins, and 13–20 cm (5–8 in) long. The flower is drooping, long-stalked, with six narrow, greenish-yellow (rarely pink) petals, rather like a sea star in appearance, and yields a highly fragrant essential oil. Wikipedia