The six elements you need for a perfect flower arrangement

In an extract from her new book Cut Flowers, Celestina Robertson explains the six types of plant you need to grow in your cutting garden to create the perfect arrangements

Focals tend to be large, blowsy blooms that instantly catch your attention: think double tulips and ranunculus in spring; peonies, roses and sunflowers in summer; and chrysanthemums and dahlias in autumn. These focals are often rounded in shape and the colour choice can determine the colour scheme for a design. Typically you will need a smaller proportion of focal flowers than fillers and foliage for an arrangement (unless you are creating an opulent, luxurious display); just a few of these blooms can make a big impact.

Supporting flowers in your arrangements can be broken down into different groups by shape. They are used as a contrast to your focal bloom. Spikes and spires will include varieties such as delphiniums, foxgloves and antirrhinum — their linear form creates a vertical accent, adding height, drama and dynamism to your floral arrangement. Disc-shaped flower heads such as ammi, echinacea and daucus add another layer of interest. When using supporting flowers, consider their size and shape in relation to the focals and how the colour supports and enhances them.

Fillers, texture and airy elements

Filler flowers are essential to bulking out a display, filling the space between the larger blooms and knitting the design together. This type of material will often have smaller flowers and branching heads like autumn-flowering asters or the perennial rudbeckia ‘Henry Eilers’. Some fillers can be used to provide another shade of green to enhance that sense of the garden: alchemilla, bupleurum, cerinthe and mint fit into this category. Using a mixture of filler material can help to develop a colour scheme and add scent to arrangements.

In a shift away from traditional floristry dominated by hybrid tea roses, chrysanthemums and carnations, the addition of textural elements will completely change the aesthetic of your floral arranging. Our gardens are filled with buds, seedheads and grasses throughout the year, and you can make use of this material to add texture, light and rhythm to your displays. Poppy seedheads together with roses in early summer or sparkling grasses with dahlias in autumn can give a more natural, garden-like sensibility to a design and nod to the abundance of each season you are gathering the flowers in.

The joy of using such a wide range of plants for cutting is that there are unusual varieties you can use from the garden that you wouldn’t typically be able to find in a traditional florist’s shop. Airy elements are those dancing blooms on long thin stems that add movement and that final bit of magic to an arrangement. Aquilegia float like butterflies with their long-spurred flowers in late spring, delicate panicles of Stipa gigantea (golden oats) look like drops of shimmering gold come midsummer, and sanguisorba can add a pop of lightness when paired with dahlias in late summer. Playful, whimsical and wild!

Taken from Cut Flowers by Celestina Robertson, £12.99 (Frances Lincoln)