Rosemary is not the easiest herb to grow from seed. In fact I gave up last year and bought a couple of plants from a garden centre and took loads of cuttings from them - much easier and more succesful.
One of my seed catalogues makes the following observation - approx 900 seeds per gram, 10g (9000 seeds !) required for 1000 9cm pots - so that tells you what the germination is like.
