Summer Flowers That Are Purple & Blue

Updated July 19, 2017

Summer flowers bloom in a mosaic of hues and shades, including purple and blue. Periwinkle, cobalt, cerulean, violet and indigo blossoms add splashes of colour to summer gardens and arrangements. Whether you plant these summer flowers in your garden or choose them for a bouquet, blue and purple flowers add contrast, depth and texture no matter where you place them.


The delphinium ranges in colour, displaying many shades of light to deep blue and purple as well as white and pink. It is tall, so when planting it in the garden set it behind other flowers. Delphinium adds height to bouquets and creates stunning centrepieces. With its vibrant blue hue the delphinium contrasts beautifully with orange poppies and red dahlias.


Lisianthus, sometimes referred to as Texas bluebell or prairie gentian, is a popular cut flower and a florist's favourite but it also does well in the garden, blooming all summer long. Its palette ranges from white and pink to violet blue and purple. Lisianthus' availability in flower shops makes it a perfect choice for cut flower bouquets or arrangements. The buds of a lisianthus flower are long and elegant, adding interest to bouquets when placed with the flower heads. Lisianthus can also be found in variegated forms, including white with pink-rimmed petals and purple flecked with white.

Sweet Pea

Sweet pea is a prolific summer flower, blooming often until the autumn. Its delicate petals come in many colours including purple, indigo and even navy blue. Sweet pea has a sweet scent making it a welcome addition to any bouquet. If you plant it in your garden, as a vine it will need something to climb like a fence, a railing or a trellis. Sweet pea is readily used as a wedding flower. Because of its short stems when snipped off the vine it is best suited for small bouquets or low table arrangements.


Allium is part of the onion family and may impart a slight to strong onion scent. Its globe shape makes it an interesting focal point in the garden. While it will add interest to a bouquet, take its scent into consideration. Try paring it with a more strongly scented flower like a lily to mask the scent. Allium comes in different shades of purple and white and is used frequently as a border plant in gardens.

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About the Author

Jennifer Mullett started writing in 1998. She has published several short stories in Notebook Magazine, has ghostwritten news releases and articles for local companies and continues to write fiction. Mullett has a diploma in floral design from The Canadian Institute of Floral Design and a diploma in photographic studies from Lawrence College.