Allium giganteum - Giant Allium

Allium giganteum, also known as giant ornamental garlic, is undoubtedly one of the largest species among ornamental garlics. This bulbous plant stands at a height of 1.50m (5ft) and has spherical umbels composed of tiny star-shaped flowers, ranging from pale lilac to deep purple-pink. The rosette of ribbon-like grey-green leaves is aromatic, and all parts of the plant release an onion scent when crushed. It should be grown in sunny locations to brighten up flower beds and rockeries, in light but moist soil.

Allium giganteum is a perennial bulbous plant native to Iran and southern Central Asia, belonging to the family of lilies (alliums). In spring, it forms a basal rosette composed of deciduous grey-green leaves, linear in shape, measuring 35 cm (14in) long and 5 to 10 cm (2 to 4in) wide, which disappear in summer, while sturdy stems emerge from their centre, reaching a height of 1.50m (5ft) and bearing very dense spherical umbels of approximately 15 cm (6in) in diameter. Their colour varies from pale lilac to vibrant purple-pink when fully bloomed.

This is the latest blooming ornamental garlic. Easy to grow, Allium giganteum thrives in any type of well-drained and sunny location. It can be used in flower beds or as a border for pathways, and can also be grown in pots to enjoy its beautiful flowering on a balcony or terrace. Enhance your floral arrangements with its leaves or flowers, or dry them for a unique touch! Plant Allium giganteum in groups of 3 or 5, nestled among your perennials, or combine it with trimmed boxwoods for a spectacular graphic effect. Its stunning inflorescences will also be beautifully complemented by a backdrop of grey foliage shrubs, such as artemisias for example.