[dmg]

In my new garden the borders are covered in conifers, pine and rhododendrons which I plan to lift, could I plant blueberries direct in the soil or will it need to enriched with ericaceous compost?

Thanks
Dmg

[Sparkyrog]

The rhododendrons will make the soil acid enough themselves 

[diospyros]

If the rhodies are happy I should think the blueberries would be.  Conifer needles will acidify the soil.  But you could always do a pH test just to be sure.

[moose]

I'd agree with diospyros - do a pH test. I have a conifer hedge and it makes no difference to my soil maybe because it is heavy clay?