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This beautiful broadleafed evergreen shrub or small tree can reach up to 15 ft (4.6 m) in height and approximately the same in width. In general the Japanese pittosporum grows taller in the shade while those grown in full sun are more compact. In both situations the plant assumes an upright round-headed form with branches radiating out from around the stems. There is a dwarf variety that grows to only about 2 ft (0.6 m) in height called 'Wheeler's Dwarf'. This densely branched and compact shrub forms neat bushel basket size mounds that find use in groundcover plantings, especially in commercial landscapes. The leathery leaves are glossy on the top with undersides that are lighter and have a dull surface. These very ornamental leaves reach a length of from 1-5 in (2.5-12.7 cm) and up to 1 in (2.5 cm) wide with edges that recurve (curl down and inward). They are arranged alternately in a whorl around the stem, an arrangement that provides dense foliage which I think enhances the plant's interest and attractiveness. There is also a popular variegated form that seems to be more frequently grown than the species. It has grey-green leaves with cream-colored irregular margins that permit it to make a pleasing contrast in mixed plantings.
Location Culture
Japanese pittosporum is a good choice for screens and informal hedges. It can also be closely sheared to create formal hedges and topiary although I think there are better shrubs for this purpose. This is because its relatively large leaves look shabby when portions are sliced off. On the other hand I do like to selectively trim and remove the lower limbs to create small trees that serve as bonsai-like specimens for patio areas and entryways. However you choose to prune them, they look great and will also grow well in containers. The beautiful evergreen foliage and ability to produce its fragrant flowers indoors make this pittosporum a desirable greenhouse plant. Grow the variegated variety in the high shade of pine trees where they will thrive. The gray-green and cream foliage look especially nice in spring when grown as a backdrop to pink azaleas. The Japanese pittosporum is also salt and drought tolerant so it is a good choice for seaside plantings.
However you grow it, as hedge, specimen or screen, the Japanese pittosporum makes a favorable impression. This is an adaptable and versatile woody ornamental with many desirable attributes. It is inexpensive and, in areas where it can be grown, is readily available from discount garden centers. This pittosporum is a moderate to fast grower if provided adequate nutrients and water and has a long life span. I have several of the variegated variety planted around my favorite sitting area near the Catfish Pond. I hang out here for hours at a time in the spring watching birds, reading and enjoying the mockorange's heavenly perfume (which the butterflies seem to like as much as I do). Plant one near your patio or favorite outdoor hangout! The common name mockorange is used for several unrelated species that produce scents reminiscent of citrus blossoms which is why we prefer to use the common name Japanese pittosporum. Mockorange is also used to refer to species of the genus Philadelphus and to other species of Pittosporum. There are over one hundred species in the genus Pittosporum. Many are from New Zealand and Australia and, although not as commonly seen in the US as P. tobira, are also popular ornamentals. P. undulatum, the sweet pittosporum, delivers deliciously scented flowers to Zone 9-10 gardens. Jack Scheper 12/01/96, updated 1/20/02, 2/2/04, 4/19/04
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