Nursery bed or wildflower bed?

Hi All,

I need to put a new path in by the veg beds as I didn't make it wide enough first time. I am replacing the gravel with slabs. The idea was to put a wild flower bed next to it that would be 2ft x 4ft, but I am now thinking of using it for a nursery bed but do not really know too much about them. I am thinking that it would be useful for leeks, and growing perennials on until they are ready for final place. Which would be more beneficial?

Rusty