Blame the late spring Tilly. I had a beauty at our last house, never had any trouble getting it established flowered profusely from the get go, but it was in a sheltered sunny spot. Bought another one recently but it hasn't flowered at all, but where I have it, is not the ideal spot for it, I plan to move it to the front of the house - I haven't taken it out of it's pot yet which explains the lack of flowers, we just haven't the weather for me to get out and do a spot of gardening until the past week or so