Dear Adam,
I am somewhat confused about the term "compost" used on Gardener's World. A lady was interviewed in the middle of the last program with the same question (i.e., what kind of compost?) but Carol did not answer the question, and in addition casually mentioned it should be sterile for seed beds! Later, Monty, while preparing some seedlings, referred to a "richer compost". And when Rachel is preparing seed beds, is she using pure compost (mixed with pearlite), or when they say "compost" do they mean garden earth mixed with compost? What do they mean?? (And I am sure the lady I mentioned above would like to know, too)