Using up those Old Pop Bottles

In my never ending quest not to pay for plant pots I've now taken to using pop bottles to grow broad beans in (working on the sq ft gardening assumption that the roots in compost will tend to grow down and not out meaning that depth will be more important).  I've placed some drainage holes in the bottom.

I'm not too sure how much of a success this will be growing the board beans inside, below is a picture of the beans that were in the kitchen a month on.  Earlier this week they were relocated to the potting shed and their small individual pots replaces with one larger pot.

Below:  On the Left the Broad Beans from the Kitchen, on the Right a Lonely Broad Bean planted outside at the same time.

These were sewn in December and have been flowering for a while but as of yet there's been no fruit.  Up until this point I thought that they were self pollinating however having now read around a bit it appears that they are not which would explain the lack of beans....now to find out how to pollinate the beans.

Below are the Peas that were planted out straight in to the potting shed (no kitchen warmth for them).