Hi, i have some cucumbers growing, F1 byblos. I was wondering if i need to pollinate them? As you can see in the photos there are tiny cucumbers forming behind the flower. Does this mean they have already been pollinated? Also i noticed people saying that their cucumber plants are really tall mine however are not, probably 2-3 ft. Do some varieties not grow so high? Also in 35 cm pots right now. I appreciate any advice you can give.