Overcrowding in pots?

Hi, I have attached an image of one section of my garden. As you can see, I have two pots. One with five allium bulbs in and the other with three. There is a gap in each pot, in which I want to plant a small herbaceous perennial.
Am I overcrowding the pots?! Will the alliums bloom with limited pot space?

Phil.

 

Hi Philip,not exactly what you had in mind,but some colourful Violas in full flower would look great.