Posted: 10/05/2014 at 14:59
There could be several reasons for no flowers sarah. Firstly is it potted in ericaceous compost.
Azaleas like to be damp but not waterlogged, the winter has been very wet, did it get waterlogged? They also like a cold spell and we haven't really had one this year. Last year was very hot, so did it dry out last year?
You say it's outside your house, is it in too much shade or not enough?
What fertilizer have you fed it with? You need to feed them after flowering with the correct type especially for the acid loving plants.
It sounds from your description to be healthy, so think back and see if anything mentioned may have happened.