As a normally very sensible friend recently commented on Flickr - these are indeed 'adorable'.
Previously known as Aster natalensis, these have proved easy to please in a sunny well drained spot, and although said to benefit from a dryish winter (coming from East Africa, this is to be expected) they have so far been better if not too parched. Completely unfazed by the last few winters' onslaught.
An easy alpine and should be better known.
1L pots ~ £6