Allium 'Purple Sensation'

Allium 'Purple Sensation' is one of the most beloved ornamental onions and a true highlight of the spring garden. It blooms in May–June with dense, spherical flower heads in an intense, purplish-violet hue that almost glows in sunlight. Each globe, about 10 cm in diameter, is made up of hundreds of small, star-shaped flowers that form a perfectly symmetrical and architectural shape.

The stems are upright and sturdy, reaching up to 80 cm, lifting the blooms elegantly above the grey-green, sword-like foliage. 'Purple Sensation' is well-suited for perennial borders, formal layouts, and naturalistic plantings, where it adds rhythm, height, and a bold splash of colour. A reliable and striking classic that blends architectural strength with the vivid brilliance of early summer.