Make the herb syrup
In a large, microwave-safe glass measuring cup, combine the sugar, water, and herbs. Microwave on high power until the sugar dissolves, 3 to 4 minutes. Let the mixture steep for 20 to 30 minutes. Let cool before using.
Make the sangria
Combine the wine, syrup, triple sec, sparkling water, and lime juice over ice in a large pitcher. Add some of the fruit to the pitcher, and portion the rest among 8 glasses. Pour in the sangria, then garnish each glass with a sprig of lemon balm.
Photo: Ben Pieper