A hydrangea bouquet is a luxurious and full-bodied floral arrangement, known for its bold, round clusters of blooms. Hydrangeas have a soft, romantic appearance, making them perfect for any special occasion, from weddings to anniversaries. The flowers come in a variety of colors, including soft blues, purples, pinks, whites, and even deeper shades like burgundy. Their voluminous heads are made up of tiny individual flowers that cluster together, creating a dense, cushion-like effect.