Hi Harry
With all that compost added, you definitely will be able to grow practically anything next year! Those worms will show their gratitude!
I used to have access to Farmyard manure - the real thing. I'm not sure if that heap is still there as I havent visied the farmer in a while.
Anyway, I used to bag it up and transport it home. It was always full of worms! That was a great bonus, I'm sure. I wonder how they get there, and in such numbers. I suppose I could do a bit of surfing and find out!
I wonder how long it would take for them to get to work on the composted FYM which you bought it. Do you think it would have the same attraction to them? (whatever that may be!)