Pittosporum ralphii ‘Stephens Island’. Hardy 5.0m x 3.0m. This plant has a tidy habit with an upright medium form. The foliage is smooth with a slight grey to green tomentose appearance and attractive pointed leaves. An interesting form found growing on Stephens Island in the middle of Cook Strait. It has some resemblance to both Pittosporum tenuifolium and Pittosporum crassifolium.