Can anyone help to identify this plant? It is very fragrant when touched (strong sweet scent). Edges of leaves are smooth. Stems and undersides of leaves have downy soft white hair/fuzz. Leaves are very soft to touch (not stiff). Stems are round.
I think its common sage (salvia officianalis) See here for a picture.
It's edible, of course - as in "parsley, sage, rosemary and thyme..." It is the only seasoning used (in industrial quantities) in traditional Lincolnshire pork sausages in the UK - a proper Lincolnshire sausage should look green, not pink, because the quantity of sage in it! If your want to try cooking with it, beware that it does have quite a strong and unusual taste, though.