The 2026 Dahlia Calendar features 12 months of exquisite and colorful Dahlia photographs, with bits of interesting history and information on Dahlias, from its origin in Mexico, to becoming the one of the earliest plants introduced to Europe to become the most cultivated flower in the world, becoming a top choice for gardeners and sustaining "Dahliamania" around the world for generations. The City of San Francisco marks 2026 as the 100th year anniversary since the Dahlia became its official flower. The 2026 Dahlia Calendar is part of the Exquisite Flower Collection 2026, a line of flower-themed gifts, clothing, homeware, coffee table books, and fine art prints featuring the photography of exhibiting and commission photographer Catherine Herrera. Catherine has reestablished the classic flower portraiture in her early Dahlia work, while 2025 captures the playful color and brilliant patterns following the first year the Dell used natural pollination and after a very foggy and cold Summer, produced a stellar year of diversity, size and form.