From the U.S. Postal Service announcement on October 22, 2019:

Contemporary Boutonniere is a new Forever stamp similar in design to the new 2-ounce Garden Corsage stamp. It can be used for wedding RSVP cards and is also perfect for party invitations, thank-you notes, announcements, birthday cards, Father’s Day cards and other occasions when a beautiful stamp is fitting. The stamp features a photograph of an arrangement of a burgundy mini-cymbidium orchid bloom, a succulent and a touch of green hydrangea, accented with loops of variegated lily grass. These materials are on trend for today’s modern designs, as arranged by floral designer Carol Caggiano and photographed by Renée Comet. Art director Ethel Kessler designed the stamp.

Additional information will be posted below the line, with the most recent at the top.

This stamp was issued Thursday, April 2nd, in Crestwood, Kentucky.

The Scott Catalogue number for this issue is 5457.

Updated March 23rd:
The first-day ceremony for this stamp has been canceled. The stamp will still be issued on April 2nd. More details will be announced closer to the issue date.

Updated March 6th:
Here are the first-day postmarks for this issue:The Digital Color Postmark measures 2.98″ x 1.35″ The pictorial postmark measures 2.62″ x 0.96″

Updated March 4th:
[press release]
Save the Date: Boutonniere and Corsage Stamps Arrive in April
New Stamps Perfect for Mailing Wedding and Other Invitations

WHAT: The U.S. Postal Service introduces two stamps for many of life’s special moments. The Contemporary Boutonniere Forever stamp and the Garden Corsage 2-ounce stamp form a natural pair.

The first-day-of-issue event for these stamps is free and open to the public. News of the stamps is being shared with the hashtags #BoutonniereStamp and #CorsageStamp.

WHO: David E. Williams, chief operating officer and executive vice president, U.S. Postal Service

WHEN: Thursday, April 2, 2020, at 11 a.m. ET

WHERE:
Yew Dell Botanical Gardens
6220 Old LaGrange Road
Crestwood, KY 40014

RSVP: Dedication ceremony attendees are encouraged to RSVP at www.usps.com/boutonnierecorsage.

Background: These new stamps reflect the organic style popular for today’s floral designs. Photographs of a boutonniere and corsage were used as the artwork for these chic stamps.

The Contemporary Boutonniere stamp is well suited for RSVP envelopes included inside wedding invitations. It is also a perfect touch for thank-you notes and announcements, in addition to regular correspondence. The 2-ounce Garden Corsage stamp can accommodate the weight of heavy invitations, oversize greeting cards, and mailings that require extra postage.

The flower arrangements in both of these designs create beautiful botanical presentations.

Customers may purchase stamps and other philatelic products through the Postal Store at usps.com/shop, by calling 800-STAMP24 (800-782-6724), by mail through USA Philatelic or at Post Office locations nationwide.

Updated February 25th:
The first-day ceremony will be held at 11 a.m. at Yew Dell Botanical Gardens, 6220 Old LaGrange Road in Crestwood.

You can reserve a space here.

From the February 27th Postal Bulletin:

On April 2, 2020, in Crestwood, KY, the United States Postal Service® will issue the Contemporary Boutonniere stamp (Forever® priced at the First-Class Mail® rate) in one design, in a pressure-sensitive adhesive (PSA) pane of 20 stamps (Item 572300). The stamp will go on sale nationwide April 2, 2020, and must not be sold or canceled before the first-day-of-issue.

Contemporary Boutonniere is similar in design to the 2-ounce Garden Corsage stamp, and can be used for:

• Wedding RSVP cards and party invitations;
• Thank-you notes and announcements;
• Birthday cards;
• Father‘s Day cards, or any occasion when a beautiful stamp is needed.

The stamp art features a photograph of a burgundy mini-cymbidium orchid bloom, a succulent, and a touch of green hydrangea, accented with loops of variegated lily grass. Each of these materials are right on trend for today’s modern designs. The boutonniere was arranged by floral designer Carol Caggiano, and photographed by Renée Comet. Art director Ethel Kessler designed the stamp.

No automatic distribution to post offices.

How to Order the First-Day-of-Issue Postmark:
Customers have 120 days to obtain the first-day-of-issue postmark by mail. They may purchase new stamps at their local Post Office™ or at The Postal Store® website at usps.com/shop. They must affix the stamps to envelopes of their choice, address the envelopes (to themselves or others), and place them in a larger envelope addressed to:

FDOI – Contemporary Boutonniere Stamp
USPS Stamp Fulfillment Services
8300 NE Underground Drive, Suite 300
Kansas City, MO 64144-9900

After applying the first-day-of-issue postmark, the Postal Service™ will return the envelopes through the mail. There is no charge for the postmark up to a quantity of 50. There is a 5-cent charge for each additional postmark over 50. All orders must be postmarked by August 2, 2020.

Technical Specifications:

Issue: Contemporary Boutonniere Stamp
Item Number: 572300
Denomination & Type of Issue: First-Class Mail Forever
Format: Pane of 20 (1 design)
Series: N/A
Issue Date & City: April 2, 2020, Crestwood, KY 40014
Art Director: Ethel Kessler, Bethesda, MD
Designer: Ethel Kessler, Bethesda, MD
Typographer: Ethel Kessler, Bethesda, MD
Photographer Renée Comet, Washington, DC
Modeler: Joseph Sheeran
Manufacturing Process: Offset, Microprint
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Pane: 20
Print Quantity: 200,000,000 stamps
Paper Type: Nonphosphored Type III, Block Tag
Adhesive Type: Pressure-sensitive
Processed at: Ashton Potter (USA) Ltd. (APU)
Stamp Orientation: Vertical
Image Area (w x h): 0.77 x 1.05 in./19.558 x 26.67 mm
Stamp Size (w x h): 0.91 x 1.19 in./23.114 x 30.226 mm
Full Pane Size (w x h): 5.55 x 5.76 in./140.97 x 146.304 mm
Colors: Black, Cyan, Magenta, Yellow, PMS Cool Gray 7 C
Plate Size: 320 stamps per revolution
Plate Numbers: “P” followed by five (5) single digits in four corners
Marginal Markings: Plate position diagram (8) • 2 Barcodes (572300) • ©2019 USPS • USPS logo • Promotional text