Posted: 23/04/2012 at 14:17
At first sight this seems to be frost damage or wind damage. This might have happened during the cold spell in February. However, we have had some dry periods after that so at root level it could be too dry. In that case it could do with watering.
How are the new leaves developing? Are they glossy and firm? It seems to me that I can see some new growth, which looks healthy, but with the dark foliage it is hard to tell.