From the USPS press release November 15, 2024:

Radiating warmth, vitality and cheer, dahlias are beloved additions to backyard gardens and formal venues alike. This issuance includes 10 close-up photographs of dahlia blossoms available in booklets of 20 stamps and coils of 3K and 10K stamps. Greg Breeding, an art director for USPS, designed the stamps using photographs by Denise Ippolito.

The latest information on this issue will appear below the line, with the latest information at the top.

Updated March 20^th:The Digital Color Postmark for this issue measures 2.94″ x 1.39″ There is no pictorial postmark for this issue, just the FDOI “killer bars.”

From the Postal Bulletin:

On April 26, 2025, in Burlingame, CA, the United States Postal Service® will issue the Dahlias stamps (Forever® priced at the First-Class Mail® rate) in 10 designs, in a pressure-sensitive adhesive (PSA) double-sided booklet of 20 stamps (Item 685300), a PSA coil of 3,000 stamps (Item 752000), and a PSA coil of 10,000 stamps (Item 762700). These stamps will go on sale nationwide April 26, 2025, and must not be sold or canceled before the first-day-of-issue.

Ten new stamps highlight the beauty of dahlias in bloom. Close-up photographs feature showy dahlia blossoms in a multitude of colors. Dahlias stamps will be sold in booklets of 20 stamps, and in coils of 3,000 and 10,000 stamps. Art director Greg Breeding designed the stamps using existing photographs by Denise Ippolito.

No automatic distribution of either format.

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 – Dahlias Stamps
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 26, 2025.

Technical Specifications— Booklet of 20:

Issue: Dahlias Stamps
Item Number: 685300
Denomination & Type of Issue: First-Class Mail Forever
Format: Double-sided Booklet of 20 (10 designs)
Series: N/A
Issue Date & City: April 26, 2025, Burlingame, CA 94010
Art Director: Greg Breeding, Charlottesville, VA
Designer: Greg Breeding, Charlottesville, VA
Existing Photos: Denise Ippolito, Brielle, NJ
Modeler: Joseph Sheeran
Manufacturing Process: Offset
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Booklet: 20
Print Quantity: 500,000,000
Paper Type: Nonphosphored Type III, Block Tag
Colors: Cyan, Magenta, Yellow, Black
Adhesive Type: Pressure-sensitive
Stamp Orientation: Horizontal
Image Area (w x h): 1.0500 x 0.7700 in. / 26.6700 x 19.5580 mm.
Stamp Size (w x h): 1.1900 x 0.9100 in. / 30.2260 x 23.1140 mm.
Booklet Size (w x h): 2.3800 x 5.7600 in. / 60.4520 x 146.3040 mm.
Plate Size: 880 stamps per revolution
Plate Number: “P” followed by four (4) single digits
Marginal Markings: Header: Dahlias • TWENTY FIRST-CLASS™ FOREVER STAMPS® • © 2024 USPS in peel strip area • Barcode • USPS logo • Promotional text • Plate number in peel strip area

Technical Specifications— Coil of 3,000:

Issue: Dahlias Stamps
Item Number: 752000
Denomination & Type of Issue: First-Class Mail Forever
Format: Coil of 3,000 (10 designs)
Series: N/A
Issue Date & City: April 26, 2025, Burlingame, CA 94010
Art Director: Greg Breeding, Charlottesville, VA
Designer: Greg Breeding, Charlottesville, VA
Existing Photos: Denise Ippolito, Brielle, NJ
Modeler: Joseph Sheeran
Manufacturing Process: Offset
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Coil: 3,000
Print Quantity: 9,000,000
Paper Type: Nonphosphored Type III, Block Tag
Colors: Cyan, Magenta, Yellow, Black
Adhesive Type: Pressure-sensitive
Stamp Orientation: Vertical
Image Area (w x h): 0.7300 x 0.8400 in. / 18.5420 x
21.3360 mm.
Stamp Size (w x h): 0.8700 x 0.9800 in. / 22.0980 x
24.8920 mm.
Plate Size: 594 stamps per revolution
Plate Number: “P” followed by four (4) single digits
Coil Number Frequency: Plate number every 15th stamp below stamp image

Technical Specifications— Coil of 10,000:

Issue: Dahlias Stamps
Item Number: 762700
Denomination & Type of Issue: First-Class Mail Forever
Format: Coil of 10,000 (10 designs)
Series: N/A
Issue Date & City: April 26, 2025, Burlingame, CA 94010
Art Director: Greg Breeding, Charlottesville, VA
Designer: Greg Breeding, Charlottesville, VA
Existing Photos: Denise Ippolito, Brielle, NJ
Modeler: Joseph Sheeran
Manufacturing Process: Offset
Printer: Ashton Potter (USA) Ltd. (APU)
Press Type: Muller A76
Stamps per Coil: 10,000
Print Quantity: 15,000,000
Paper Type: Nonphosphored Type III, Block Tag
Colors: Cyan, Magenta, Yellow, Black
Adhesive Type: Pressure-sensitive
Stamp Orientation: Vertical
Image Area (w x h): 0.7300 x 0.8400 in. / 18.5420 x 21.3360 mm.
Stamp Size (w x h): 0.8700 x 0.9800 in. / 22.0980 x 24.8920 mm.
Plate Size: 594 stamps per revolution
Plate Number: “P” followed by four (4) single digits
Coil Number Frequency: Plate number every 15th stamp below stamp image

Updated February 20^th:
These stamps will be issued April 25 at Westpex stamp show in Burlingame (San Francisco), CA.