Surely the test of a novel's characters is that you feel a strong interest in them and their affairs the good to be successful, the bad to suffer failure. Well, in John Ward, you feel no divided interest, no discriminating interest you want them all to land in hell together, and right away.
I suppose that for most people one of the darker joys of gardening is that once you've got started it's not at all hard to find someone who knows a little bit less than you.