From my one time experience with favas, I would say they are neither bush nor pole in habit. They are quite different from common beans. They are more like a stalk. Mine were a little over knee high. No staking or trellising was needed.

Jim

Thanks Jim.

Broad beans is the name given to favas in the UK. So 'Windsor' is the variety name. They can grow taller than knee high, depending on the variety. The ones I grow are generally between 2 and half and three feet but some grow taller. A simple way of stopping them blowing over is to place two stout sticks at each end of the row and run a string up one side and down the other. Each bean seed will produce one to three stiffish stems whith clusters of pleasantly perfumed black and white flowers (though there are red varieties) in the leaf axils. They are a cool weather crop. I sow some in November then again in February, March and April. We love them. (By the way, hope I'm not teaching my grandmother, but you eat the beans, not the pods generally, although some people like the immature pods cooked whole). Google broad beans for lots more information.