Wet wet wet

I am not sure what this small shrub in my garden is.  I should have kept the label shouldn't I.  I thought it might have been something in the Emu bush clan but now I don't think so.  It is a mass of these blue flowers at the moment.  It has a grey/silver green foliage.  I am sure it is an Australian native so any help on identification would be greatly appreciated.

Only time for a quick scout for drips this morning and it has generally been miserable the rest of the day although I believe Sydney had a spectacular rainbow at sunset this evening.