The Flower Diaries

Flower Categories for Floral Design

Flower Categories for Floral Design

Believe it or not, floral design isn’t just haphazardly sticking pretty blooms into a vase. Professional designers spend a lot of time training and studying the art of technical floral arrangements. One aspect of this education includes the four flower design classifications: line, form, mass, and filler. Below is a brief summary of each one and a few examples. Keep in mind that certain flowers can fit into more than one category and this can vary by the variety!


  • Blooms grow along the stem
  • Usually tall and create the outline of a design
  • Examples
    • Snapdragon, larkspur, eucalyptus, foxglove, stock


  • Flowers with a unique shape or texture
  • Draw and center attention
  • Examples
    • Daffodil, sweet pea, balloon flower, freesia, nigella


  • Large bloom(s) at the top of a stem
  • Add weight to a design
  • Examples
    • Dahlia, lisianthus, poppy, aster, cosmos


  • Smaller blooms, multiple per stem
  • Fill in gaps and create a cohesive look
  • Examples
    • Statice, amsonia, phlox, ageratum, celosia

*DISCLAIMER* If you’re designing with flowers for fun, don’t worry about following all the rules - just use whatever flowers in whatever way makes your heart happy!

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