Im growing cucumbers for the first time this year (in the greenhouse, uk). I have a Passandra F1 plant which has around 30 cucumbers growing on it at the moment, they are half size cucumbers and are ment to be around 6-7" but how will i know when they are ready to pick or is it just a guess when they look big enough, would the cucumber be ruined by picking it to early or late. Im really excited as the plant is growing really fast and producing an amazing amount of cucumbers I cant belive you can have so many on such a small plant.