Posted: 22/09/2014 at 19:07
Vikki..........as Greece covers several types of landscape and flora, are you looking for coastal, inland or mountain ? Do you have space for some architectural features which would lend a "Greek atmosphere" ? That way, you could perhaps be a little more general with the types of plants you grow. I applaud your thinking but it may take more than plants to recreate Greece in N Warwickshire
You have the Olives but I presume they don't yet resemble the gnarled old trees which evoke Greece ? How about a Stone or Parasol Pine to add some shape ? Obviously the shrubby herbs ( Rosemary, etc. ) will provide the basic fragrance but you may need to help your soil along for these to be really happy. Depending upon your inclination, you can grow Hibiscus and Bougainvillea etc. in pots for the summer but you would want somewhere to overwinter them safely. The European Fan Palm may be worth looking at too.....the hardiest one in the UK so should be ok if in the right situation.
I would think you need to do a bit of research if you want to be "totally" Greek but there are plenty of other plants which would lend the atmosphere...whether they would all survive is another matter. If you are prepared to stretch the imagination a little, there are plenty of hardy shrubs and perennials which would fit with the idea of southern Europe.
You don't mention the size of garden or orientation....maybe a few photos and further description would help others to make suggestions.
Best of luck anyway