@sue1953 I just give them 2 or 3 of these slow release plant feed little green sticks in the middle of March. I assume you get them there too. They are about 4cm long. I will give them maybe another couple at the end of August & that's it. #tip The secret of the mass flowering is the same with most plants keep them in as small a pot as you can & they will flower much better. The downside of that is you need to make sure you water regularly as they do dry out very quickly. Have a go.