Open-pollinated. Beth Rasgorshek of Canyon Bounty in Idaho crossed King Richard with Siegfried Frost leek to create a versatile stable cultivar that has some of the good attributes of both. Sieg appears to have inherited the most from Siegfried. Its shanks are intermediate between the long King Richard and the short Siegfried, about 6-inches long but with a wonderful 3-inch thickness for a wide edible area. It also has some of Siegfried’s delightful blue-green coloration and delayed maturity.