Hanging baskets are really difficult here. I've tried in my limited gardening career and failed to keep them going. Look good for a bit but that's it and I have spent quite a lot of money in my attempts.
My only consolation is that 2 gardening friends who are English have given up too and that's saying something as they love them. The both have lovely memories of absolutely beautiful hanging baskets outside shops in England.
At the moment, because I hate to give up entirely, I have 2 hiding at my garden shed to see if they come good. I have Big Red Geranium in one and white Plectranthrus in the other and I have chosen these because I have them in growing profusely in my garden and so if and when they die in the heat it won't have cost me as it has in the past. Maybe I have to think in terms of them as annuals, that they are here for a good time, not a long time!!!
They do have large hanging baskets with both the ones I am trying for sale in nurseries and they cost a bomb so I am keeping my fingers crossed. At the moment I have 1 near the front door with succulents which is ok but it's really a bit plain and boring. A couple I have put in there flower so maybe when that happens it may look more impressive.