Pittosporum - Knowledgebase Question

Bedford, Te
Question by gtyner0553
March 11, 2010
Recently moved into a home that has a hedge of Pittosporum which is growing too tall and wide so as to overtake the area. There don't seem to be leaves other than the outside of the plant. Is it possible to trim them back still? & how or when?


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Answer from NGA
March 11, 2010

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It sounds as though the plants have been neglected. At maturity, pittosporum can reach 8 to 12 feet or more in height, with a 12 to 18 foot spread. The natural form is dense and mounded. Pittosporum responds well to pruning so you can prune them back by a third and expect them to respond with lots of new growth. If that seems too drastic you can prune yours back a little at a time to help it fill in towards the centers of the plants. If you decide on this route, don't cut off all the foliage during any one pruning session, but do cut the tips of the stems back by a few inches. You'll see lots of new growth developing, both towards the interior and just behind the pruning cuts. Either way, it will take a period of 2-3 years to reduce the size of the hedge and get a fuller, denser growth habit.

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