01 - Combine water and sugar in a small saucepan. Bring to a simmer over medium heat, stirring constantly until sugar completely dissolves. Remove from heat, stir in dried lavender, and let steep for 15 minutes to infuse the floral flavor.
02 - Pour the lavender-infused syrup through a fine-mesh sieve to remove all lavender buds. Allow the strained syrup to cool completely before proceeding.
03 - In a large pitcher, combine the freshly squeezed lemon juice, cooled lavender syrup, and cold water. Stir thoroughly until all components are fully incorporated.
04 - Taste the lemonade and modify sweetness or tartness according to preference. Add more water for mellower flavor, additional syrup for sweetness, or extra lemon juice for increased acidity.
05 - Add ice cubes to the pitcher. Pour over ice-filled glasses and garnish with fresh lemon slices and lavender sprigs if desired. Serve immediately while chilled.