Fill a large glass or pitcher halfway with ice

Add white grape juice, cranberry juice, and lemon juice

Stir in lavender simple syrup until fully combined

Taste and adjust sweetness or tartness if needed

Slowly pour in sparkling water or club soda

Stir gently once or twice to combine without losing carbonation

Pour into ice-filled glasses

Garnish with lemon slices and berries

Serve immediately while cold and bubbly

Lavender Simple Syrup (if making)

Combine sugar and water in a small saucepan

Heat over medium heat until sugar dissolves

Add dried lavender, remove from heat, and steep for 15 minutes

Strain out lavender and let syrup cool completely

Store refrigerated for up to 2 weeks