Colchicum zahnii is a species of flowering plant in the familyColchicaceae.

It blooms in mid-autumn from rhizomatous corms.

The flowers can be variable coloured, being a pale purple-pink to white and are often held wide open.

The leaves are produced at flowering time and usually number 2 to 3.

This species is similar to Colchicum boissieri in that the corms grow into large patches, rather than tight clumps like Colchicum speciosum or Colchicum autumnale.