Most wallflowers are pollinator-generalists, their flowers being visited by many different species of bees, bee flies, hoverflies, butterflies, beetles, and ants.
They are frequently treated as bedding plants, accompanied by other seasonal favourites such as wallflowers and forget-me-nots, flowering for one season before being discarded.
It usually feeds on crucifers: both cultivated brassicas and wild species such as flixweed, garlic mustard, perennial wall-rocket, wallflower and wild radish.