Zucchini blossoms' delicacy requires they be acquired from a local source. See here how to buy, store, and cook zucchini blossoms.
What Are Zucchini Blossoms?

Photo © Molly WatsonZucchini blossoms are the flowers on a zucchini plant that will become the zucchini. They have a delicate zucchini flavor and soft, slightly velvety texture.
How to Buy Zucchini Blossoms
Zucchini blossoms wilt and spoil quickly. They best when used the same day they are picked (which is why your own garden is the best source--pick the thicker-stemmed male blossoms to reduce the impact on your eventual zucchini harvest). At markets looks for blossoms with green, moist stems that haven't dried out at all and bright orange flowers that haven't started to wilt.How to Store Zucchini Blossoms
Zucchini blossoms are best used the same day they are picked. If you need to store them, keep them chilled and loosely wrapped in a plastic bag. Be sure to put them where they won't be crushed by other produce.How to Cook Zucchini Blossoms
Zucchini blossoms are traditionally stuffed and fried. While
Fried Zucchini Blossoms are delicious and easy to make, zucchini blossoms' delicate flavor also pairs well with fresh cheeses, eggs, and delicate salad greens. See a few
quick ideas here.