I let the shallots bloom for more bee forage. It's OK if that results in smaller shallots. These are "Holland White". The name refers to the shallot itself, not the flower. I think. It's a pretty flower very dramatic. Native bees - tiny bees and bumblebees - forage the flowers as well as honeybees. Possibly more than the honeybees.
White shallot flower provides camoflage for white apivorous spider. I'll guess, white crab spider.