CGN’s collection of lamb’s lettuce has a relatively short history. In 2008 it was agreed to include a selection of the most important Dutch varieties in the collection of the German national genebank in Gatersleben. In 2010 CGN’s new policy to specialise in vegetable crops resulted in the start of the development of several new crop collections.

These new collections also included lamb’s lettuce due to its relatively poor representation of genetic resources in existing collections and the importance of the crop to the Netherlands. As it was decided that CGN’s lamb’s lettuce collection should also contain the important national varieties, some degree of overlap with the German collection was unavoidable. Currently (July 2013), the collection is still under development.