Steep lavender in boiling water for 15 minutes in a covered pot. Strain infusion; add lemon juice, sugar and water. Chill in the fridge for one hour before serving. Serve with fresh lemon slices and lavender blossoms. Delightful with strawberry ice cubes.
To make strawberry ice cubes, place one strawberry in each hole in a tray, fill it with water and freeze. Add the ice cubes to lemonade just before serving.