Onion

Allium altaicum, or Siberian Onion, is a robust, ornamental allium perfect for naturalising in UK gardens. It produces attractive spherical pinkish-purple flowerheads in summer, above attractive strap-like foliage. Excellent for rockeries, borders, or wildflower meadows, offering both beauty and culinary leaves.

Sun: Full sun.

Soil: Well-drained loam, sand, chalk.

Hardiness: H7 — below −20°C.

Flowering: Jul, Aug.