Watermelon White Sangria

Ingredients (8)

• 1 cup cubed watermelon
• 1/2 medium nectarine, peach or plum, thinly sliced
• 1/2 cup raspberries, sliced strawberries or blackberries (optional)
• 5 to 6 thin slices lime
• 1 (750 ml) bottle sauvignon blanc
• 1/4 cup St. Germain liqueur
• 1 to 2 tablespoons agave nectar or simple syrup (optional), to taste
• Ice, for serving