Pastel Hydrangea Floral Pattern in Preppy Style

seamless preppy Lily Pulitzer style repeating pattern, soft preppy hydrangea floral, vertical composition, airy spacing, medium-sized hydrangea clusters, pastel color palette (baby blue, periwinkle, blush pink, soft lavender), no yellow, soft sage green leaves, watercolor + gouache hybrid texture, light painterly style, subtle definition (not too washed out), feminine grandmillennial coastal aesthetic, clean white background, elegant and minimal, evenly spaced layout, print-ready textile pattern