I actually find it quite difficult to grow a Facebook page.

All of the guides/suggestions imply that you already have a following somewhere that you can draw up on.

What if you are trying to grow a facebook page from scratch?

You can advertise (pretty expensive 0.42 for general UK population, even more if you narrow it down), you can invite all your friends, well you might get 10 friends to join. Then what? You can post all the content in the world but how is anyone to find out about it?