Delphinium sends up tall, dramatic spires densely packed with blooms in one of the truest blue shades found in the plant world, anchoring the back of many classic English cottage borders.
Native to the Northern Hemisphere, delphinium's towering flower spikes have made it a beloved cut flower and border staple for centuries. Genuine blue pigment is rare among flowers, making delphinium especially prized by gardeners chasing that particular color.
Delphinium symbolizes an open heart and lightness of being, and as the birth flower for July, it's become a popular way to celebrate a summer birthday.
Delphinium wants full sun, rich soil, and protection from strong wind, since its tall flower spikes can snap without staking. Cutting spent flower stalks back after blooming can encourage a second, smaller flush later in the season, and it generally performs best in climates with cool summer nights.
All parts of delphinium are toxic if ingested, and it has no history of safe culinary or home remedy use — it should be admired strictly as an ornamental and kept away from grazing animals and pets.