When I moved back to my Parkhurst home in June 2013 I planted a pavement Potager. The planters are made from willow reeds. Over a year later, the lavender and rosemary is growing wild as are the perennial herbs.
I plant vegetables and salad stuff seasonally. The soil is still rich in nutrients and all I need to do is occasionally fertilise with worm juice. It's proved to be an inexpensive garden, as I sow a variety of seeds and supplement with any plants left over from landscape jobs.