Sky and Sea
Blue is synonymous with peace, serenity, infinity and travel. It is a cold colour and one of the three primary colours with red and green.
Rarely found in nature, but popular in gardens, blue-flowering perennials give depth to a border and are enhanced by soft light.
Blue-flowering perennials are particularly useful in small gardens as they push back the walls to give an illusion of space. We like to plant them at the back of a mixed border.
Combining them with other plants is child's play as blue goes with nearly everything.
If the flowers have a grey or metallic sheen we plant them with silver foliage perennials (Artemisia) or with other lighter-coloured flowering plants (white, beige, light pink). Conversely, if the flowers are tinged with red, we match them with darker, warmer colours (brown, red), purples and violets.