This perennial has spherical bulbs with upright foliage that forms a clumping habit. It has long blue green strap-like leaves and the purplish star-shaped flowers appear in a ball like cluster above the foliage during summer.

Hardiness zones 7 to 9 

Allium rosenbachianum is naturally found from central Asia growing in meadows and open grasslands. It prefers a well drained moderately fertile moist sandy loam in an open but wind protected sunny position and is frost and drought tolerant.

Showy Onion is grown for its flowers and clumping habit. It is planted in small or large gardens along borders or as a specimen in a rockery. It is suitable for coastal and inland regions, establishing from division in 1 season. It may also be grown in containers and is excellent colour contrast for a cottage garden. ID 2130

Allium (AH-lee-um) rosenbachianum (ROSE-en-BAHK-ee-AH-num)

Alliaceae  (AH-lee- AY-see-ee)
Onion family