Plant it - and they will not come
We live along the Columbia near Portland, and are planting bushes and whatnot in a piece of ground that is between the house and a driveway.
It has no connection to any other part of the yard (worms cannot get there).
It is heavy clay fill, above it a layer of plastic and a thin layer of "dirt" and then a layer of fine red bark dust (probably fir).
As I plant, I am using a good compost mix from a local store.
What can I do to bring (or add) worms?
Should I buy nightcrawlers and add them to the base of the plants (ceanothus and rhodies mostly)?
Should I strip the bark dust (truly useless stuff, I think) and replace it with more compost?
Then add worms (worms cannot crawl there)?