In article , Sacha
writes

Herbs seem the best bet in terms of being a concreted area and having to use
pots. Don't water them too much! If you grow Salvia turkestanica nobody's
going to worry about the dog pee. ;-) That's a joke, not a
recommendation! It's one of the most foul smelling but beautiful, plants
there is!
If there are any gaps in the paving, can you introduce some low growing
herbs which will smell nice when trodden on? Woodruff was used as a
strewing herb but I don't know if it had to be dried first, or not.

I think you're right that it had to be dried. Coumarin is the active
ingredient, IIRC

--
Kay
"Do not insult the crocodile until you have crossed the river"