When choosing the best flowers for a birthday, vibrant and cheerful blooms are ideal. Popular choices for birthday flowers delivery include roses, lilies, tulips, and daisies, each offering a unique sentiment. Roses symbolize love and admiration, while lilies represent elegance and beauty. Tulips add a touch of grace and warmth, and daisies convey innocence and joy. Personalizing the bouquet with the recipient's favorite flowers adds a special touch. For a memorable birthday surprise, consider opting for a mixed bouquet to brighten their day.