What is a natural product way of eradicating roaches from ones home?

Make some simple dough, flour and water.

Mix in some boric acid.

Roll into tiny balls, about the size of a pea.

Place them along walls and/or cabinets out of reach of pets and children.

In Texas we saddle up the big ones and ride 'em.

You're going to have to forgo natural products and be prepared to hire a service to do the annihilation. Roaches are determined little F-ers and won't take an eviction notice and boric acid seriously.

I'd wear shoes at all times to step on them. Stepping on them barefoot is just out of the question, they are the grossest.