Storage: Store arugula blossoms in their plastic clamshells in the refrigerator.
Shelf Life: 3-5 days.

Arugula blossoms can be used to garnish for savory dishes, as a decoration for plates or tossed in salads as an ingredient.
Some edible flowers may wilt or change color when exposed to vinegar, so if using a vinegar-based dressing on salads containing edible flowers, test it on a few blossoms ahead of time and/or add it at the last second.
Edible Flower Recipes, Tips & Information