[smellykipper]

We have have some plants that have not flowered but there are lots of spuds when we dig them up, is this normal ? swift was the seed

Sk

[JayG]

According to the British Potato variety database Swift doesn't produce berries, so presumably doesn't flower either (although some varieties that are supposed to sometimes don't, just to confuse matters!) 

[Salmo]

Some varieties just produce a tiny flower bud which comes to nothing. If you blink you miss it.