This shrub to small tree has ridged branches that form a dense rounded crown. It has  glossy green elliptical leaves and the tube-shaped fragrant creamy white flowers appear from winter to spring.

Hardiness zones 9 to 10 

Gardenia thunbergia is naturally found in South Africa growing in well-drained fertile moist soils that are tending acidic in a protected sunny position. It is frost tender and drought tolerant.

The Starry Gardenia is a fragrant shrub that is grown for its habit and flowers. It is planted in parks and sub-tropical gardens as a specimen or along borders for screening. The shrub is suitable for coastal regions establishing in 2 to 4 years and is long lived. ID 1035

Note:
It may be difficult to obtain requiring a specialist nursery.

Gardenia (gar-DEEN-ee-a) thunbergia (thun-BER-jee-ah)

Rubiaceae (ROO-bee-AY-see-ee)
Coffee and Madder Family