01 - Combine water and sugar in a small saucepan. Bring to a simmer over medium heat, stirring continuously until sugar dissolves completely. Remove from heat, stir in dried lavender, and let steep for 15 minutes to infuse floral flavor.
02 - Pour the syrup through a fine-mesh sieve to remove lavender buds. Allow the strained syrup to cool to room temperature before combining with lemonade base.
03 - In a large pitcher, combine freshly squeezed lemon juice, cooled lavender syrup, and cold water. Stir thoroughly until all components are well incorporated.
04 - Taste the lemonade and adjust sweetness or tartness by adding small amounts of water, syrup, or lemon juice as needed to achieve desired flavor balance.
05 - Add ice cubes to the pitcher. Pour over ice-filled glasses and garnish with fresh lemon slices and lavender sprigs if desired.