The nation’s “first gardener” is coming to Politics & Prose.

The Washington-area independent bookstore announced Wednesday morning that Michelle Obama will be on hand to sign copies of her book “American Grown” on May 7.

Obama’s first book, published by Crown last May, advocates healthy eating and home-grown vegetables. It tells the story of her efforts to create an “edible garden” at the White House in 2009.

This will be the first time a sitting first lady has done a signing at Politics & Prose, but as first lady and later as secretary of state, Hillary Rodham Clinton visited the store several times to attend events and shop.

Security concerns will make this a book signing like few others. Customers who want to meet Obama at Politics & Prose next week will need to “complete a security screening form in person.” But before that, each customer will need to reserve a wristband. Politics & Prose will begin handing these out — one per customer — at 9 a.m. Thursday. (Quantities are strictly limited.) No one will be allowed to bring more than one copy of “American Grown” or any other books or memorabilia to the signing. The store will have more than 250 copies of “American Grown” on hand.

This morning, Politics & Prose co-owner Lissa Muscatine said via e-mail, “We’re thrilled to host Mrs. Obama and to help showcase the extraordinary work she has done with the White House garden and spread her message about the importance of healthy eating and healthy living for all Americans, and especially kids.”

“American Grown” contains photographs of the White House garden and community gardens across the country, along with recipes from the White House chefs. The text covers the history of gardening in the United States and provides advice for amateur gardeners and people who might like to start their own community gardens.

Obama is donating all her proceeds from this book to the National Park Foundation. Random House, the parent company of Crown, has pledged to donate an unspecified portion of its profits to the National Park Foundation.

For more information, call Politics & Prose at 202-364-1919