The dominant line, for instance, is fortified with a mass of plant material at the focal area. A Line-mass design is closer to a Mass design than a Line design though the linear quality predominates. Line-mass designs follow the vertical, horizontal, or other line directions of Line designs. Mass designs were adapted from the European Mass designs and use a large quantity of plant material. This type of design has a closed silhouette and almost always a symmetrical balance.
Mass designs are oval, circular, fan-shaped, or triangular in form.
Flowers and foliage can be either loosely arranged in an airy bouquet or more tightly organized but not crowded. As with Line designs, there is a single focal area and one point of emergence only. The container should be a component of the design and never dominant. If the container is too large, you may use some of the plant material to cover part of the container, and visually reduce the size of that container. The coloration of the container is very important and should be incorporated into or compliment the design.