Delphinium "Del" Bloom loves her grandparents' flower shop, where it's always peaceful and calm, unlike her cluttered house, where her three sisters — Rose, Aster, and Poppy — constantly cause drama. But then Gran and Gramps move away and leave the flower shop in the care of Del's scatterbrained parents! Their first order is for a big wedding and the bride wants everything — especially the flowers — to be perfect. Worse, the mean girl in Del's class happens to be a junior bridesmaid! Can Del help her family and save the day?