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 flow...