Pittosporum tenuifolium (or nigricans) has been employed as a resilient shorn or unshorn hedge for decades. The more contemporary cultivar ‘Marjorie Channon’ though, is grown more for variegated foliage. The light green leaves have creamy white borders and undulate margins. Mature unshorn shrubs get only eight feet high and broad, and are not quite as dense as the straight species. They may not be so useful as large hedging, but can provide striking contrast and depth to deep green foliage.