These cucumber, strawberry and green bean flowers will never go to fruit. It is way too late in the season, a lot of rain is due in just a couple of days. Not long after that our first frost will occur.
In the meantime, these plants are doing their very best to propagate themselves, in the remote chance that global warming is imminent and there will be no winter! Okay, I know plants do not really think like that, but I do know these are example of plants that will keep on flowering until the last bud dies on the vine.