This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.

• Position: full sun
• Soil: fertile, well-drained soil
• Rate of growth: average
• Flowering period: June
• Hardiness: fully hardy
  
  Tightly packed spherical umbels of 50 or more white, star-shaped flowers appear on upright, ribbed stems in early summer, and can be left on the plant for many months. 'Mount Everest' is a tall allium, with an outstanding architectural form that is ideally suited to gravel gardens.
  
  
• Garden care: Avoid excessive moisture from late summer when dormant. Keep in mind that the foliage tends to die back by the time the flowers open in early summer.