[1] It has showy clusters of gracefully drooping bell-shaped blossoms produced in May to early June sitting atop a tall green stem, to 1.2 m in height.

The florets (blossoms), suspended on long drooping pedicels, are cream colored with a maroon streak down each petal, have white flared tips, and are tinted green at the base.

Allium siculum is native to Turkey, iran, Crimea, Greece, Bulgaria, Romania, southern France including Corsica, and Italy (Basilicata, Abruzzo, Umbria, Toscana, Sicily, Sardinia),[7] growing in damp, shady woods.

[17][18][19] Similarly to onions when chopped, if Allium siculum is crushed it gives off chemicals that make the eyes water,[citation needed] which are termed 'lachrymatory agents'.

The precursor to the lachrymatory compound, (RS,RC)-(E)-S-(1-butenyl) cysteine S-oxide (homoisoalliin), was isolated from homogenates of A. siculum, and a closely related species, Allium tripedale, and fully characterized.