Allium caeruleum

Allium caeruleum azure blue ornamental garlic in spherical umbel on slender stem in dry bed
Allium caeruleum

Bulbous plant of the Amaryllidaceae family, native to the steppes and dry meadows of Central Asia, from southern Siberia to Kazakhstan and the Altai, where it grows on grassy slopes and well-drained light soils.

It stands out among ornamental garlics for the color of its flowers: a bright and pure azure blue, rare in the genus, borne in dense spherical umbels 3-4 cm in diameter, on slender, upright stems 40-60 cm tall, in June-July. The leaves, narrow and trigonal at the base, are often already withered at flowering, which is common among summer-bulb alliums.

A full sun plant, it requires well-drained, light, even sandy soil, and tolerates summer drought well. It is particularly effective in grouped planting in natural borders or steppe-style gardens, associated with light grasses or other perennials of dry environments. It can produce bulbils in the umbel after flowering.