Picture posting is enabled for all :)
Are the flowers males or females? The females are the ones with the tiny fruits behind them.
I've grown one called All Green Bush this year - free seeds from some magazine or other - absolute rubbish compared to other varieties I'm growing. It's a huge plant with loads of male flowers but hardly any fruit. Had to be some reason they were giving them away! Perhaps that's the one you've got, Banksy.
Can I just add that this seems to be a lot of water! If it's not rained, mine get a good soaking only about once a week!
You could always eat the flowers, stuffed, battered and deep fried. :-\