[94] Australian Native Pittosporum
Outside its native range it has become a very invasive species and care should be taken in making a decision about its use.
[95] Australian Native Pittosporum . Leaves that fall from the tree can inhibit the growth of other plants. Sweet pittosporum pittosporum undulatum is a local native species which has been popular as a garden plant for some time because of its lush european appearance and sweet scented flowers. There are about 14 australian species occurring in all states.
Pittosporum is a large genus which extends beyond australia to the warmer regions of africa asia the pacific islands and new zealand. This australian tree is planted as an ornamental because of its very fragrant flowers. Common names silver sheen green pillar golden pillar james stirling silver stirling silver song golf ball and others.
It carries conspicuous orange woody fruits about 1 cm in diameter for several months after flowering in spring or early summer. It should never be planted as it is also one of the most invasive weeds in our bushland. Botanical name pittosporum tenuifolium is the most commonly used species.
It is adaptable to a range of acid soils and is hardy to frost and drought. It will grow in either full sun or part shade. This plant is native to eastern australia where it grows in rainforest wet and dry sclerophyll forest and woodland.
Recent research has shown that pittosporum undulatum sweet pittosporum which was previously on the fire retardant list has now proven to be highly flammable once dried out and heated up by bushfires. It is sometimes also known as sweet pittosporum native daphne australian cheesewood victorian box or mock orange. Grows well in full sun or shade.
Pittosporum undulatum is a tree growing to 15 m tall with wavy undulating leaf edges. Tolerant of most well drained soils and situations moderate frosts and dry periods. Used in windbreaks and it makes good firewood and charcoal.
Leaf leaf size varies the small leaf varieties are best for more formal hedges. Soil humus rich well drained.