Mass flowers are characterized by their single stems and solid heads, making them ideal for creating visual weight in floral arrangements. These flowers, such as peonies, chrysanthemums, or hydrangeas, are typically larger and provide a bold presence in a bouquet, drawing the eye and adding structure.
In contrast, filler flowers are more delicate and used to fill gaps in arrangements rather than provide substantial weight. Form flowers tend to have a unique shape and add sculptural interest, while line flowers are characterized by their tall, linear shapes and are used to create movement and guide the eye through the arrangement. The distinctive qualities of mass flowers make them essential for achieving balance and a cohesive look in floral design.