Ericaceous plant food

Oh I didn't think of that. The Greens are the normal stuff, don't put Toms or Potato peelings or anything cooked. I do put lots cardboard & paper cut up in.

 

@john558 Compost tends to be slightly acid whatever you put in it, many breakdown products are acid, for example sugar will eventually end up as acetic acid. Older books often suggest scattering a handful of garden lime every 6 inches or so as you build up the compost heap.
I have a separate heap for pine needles and conifer shreddings as these eventually break down to give an acid compost, it is slow though, I use this as mulch for ericaceous plants.

 

Thanks for that NigelJ