Do Pittosporum Silver Sheen Trees Have Invasive Roots?

Question

I have 20 5 ft pittosporums in a long hedge and the Plumber says they are the worse possible trees to plant as the roots will Get into pipes?

Answer 1

They aren't the worst, but they are very bad to plant anywhere within around 2 meters of pipes and foundation. I would opt for something else in that area, since 20 of these shrubs will likely great damage to the pipes in the area.