Illustrator: Ned Seidler

The summer blooming flowers design features favorites such as the lily, zinnia, gladiolus (which the USPS mistakenly labeled “gladiola”), marigold, and the rose. Two kinds of roses are shown. The one at the bottom is a yellow blossom, and the other, larger rose is called a Hybrid Tea Rose.

Courtesy United States Postal Service, Postmaster General's Collection