Posted: 12/03/2014 at 10:28
Really depends on what you want to achieve. Lavenders all require sun and good drainage. Have a look on the crocus website for good pictures of the flowers, heights and spreads. Then just choose, it's difficult to recommend anything, as your question is a bit open, but a good rule is to be happy with the choice you make as taste is a very personal thing.
All the lavenders are good performers if treated properly, you have to be happy with the choice you make.