Beautiful photographs Jorun - I always love to see plants growing in their natural habitats.
Every year I am tempted to buy a Lavandula stoechas when they arrive in the spring despite the fact I know it will not survive for long. I do have one that soldiers on although it hardly looks happy - it is in a pot and 'survives' would probably be the best way to describe it. After our coldest winter for some years it is again in flower but hardly recognisable as the same plant in your photograph. I put its survival down to neglect as it receives no water during the winter months - standing outside but under cover of the loggia roof.