How should I shape my pittosporum
I have this pittosporum in my front garden however it's grown 3 x its original size in as many years. It works as a good 'screen' to distract passers by from looking into the house however I'm thinking it's stating to get a little too big and now feel the need to 'tidy' it a bit.
My question is should I be looking to acheive a particular shape or what would you recommend I do to tidy / cut it back a little. And when please?
Thank you all.