Blend the berries - In a blender, add the frozen mixed berries, orange juice concentrate, and ice. Blend until smooth and well-combined. - You can add more ice if you like your drinks thicker. Keep in mind that the ice will dilute the flavor as it melts.

Add the lemon-lime soda - Pour the berry mixture into a pitcher. Add the lemon-lime soda and stir gently to combine. - Be gentle when stirring so as not to lose too much carbonation from the soda.

Pour and garnish - Pour the sparkler into four drinking glasses. Garnish each glass with edible flowers and serve. - Make sure the glasses have been chilled beforehand for an extra refreshing drink. You can also experiment with different edible flowers for a unique look.