In times gone by(Elizabethan era methinks?) lawns wern't grass but were Camomile. Camomile is usually grown from plantlets I think but is very labour intensive to keep weed free!
I know an allotment holder who had a Camomile seat. Basically any box structure made from stone, brick or even wood. Fill with soil and plant Camomile on the top. When crushed by the posterior it lets out a wonderful scent.
I have grown it before, but only as a herb as you can make Camomile tea from it!
