Bring 1 1/2 cups water and next 3 ingredients to a boil; reduce heat, and simmer 15 minutes. Pour through a wire-mesh strainer into a large bowl, discarding spices.
Process remaining 2 cups water, juice concentrates, and lemon juice in a blender 1 minute or until frothy. Stir into syrup mixture. Chill 3 hours. Stir in ginger ale just before serving. Serve over ice.