luculia grandiflora

can anyone give me advices for how to plant this into the ground

Dig the soil over, plant it at the level it is in the pot....water it in with seasol..
Then don't disturb it or the surface roots again....prune it after flowering in summer...

Keep the roots cool , but the plant likes warmth dappled shade, hates frost ...it's a bit touchy but beautiful.
Here have a look at this ^_^

http://www.burkesbackyard.com.au/2001/archives/2001_archives/in_the_garden/flowering_plants_and_shrubs/luculia

I lost mine to frost ...but loved it while I had it. Good luck with it.

Seems to be well suited to Melbourne's climate, can grow well here.