Cygne blanc

Cygne blanc is a white Australian wine grape variety that is a seedling of Cabernet Sauvignon that was discovered in 1989 in Western Australia.

[2] In 1999, Cygne blanc was officially added to the list of permitted Australian wine grape varieties.

Today plantings of the grape can be found in Western Australia and in the South Australian wine region of the Limestone Coast around Mount Benson.

[1] The South Australian plantings are the results of an exclusive license given by the Manns to Port Robe Estate to grow the variety for commercial production until June 2014 when rights to the grapes became available to other growers.

[3] Graham Cranswick-Smith of Port Robe Estates told Harpers Magazine that the grape produces wines that have a "Cabernet character" but with aroma notes similar to Semillon and flavors of Marsanne and Roussanne.

Cygne blanc sprung up as a chance seedling from Cabernet Sauvignon grape seeds that were dropped on the ground and took root in a garden in Baskerville, Western Australia.
Cygne blanc likely inherited its white berried trait from its grandparent Sauvignon blanc.