Since 2010 CGN has built a black salsify collection and this started with the acquisition of the accessions available in European genebanks and working collections of several companies.

This resulted in the acquisition of 15 Dutch varieties, seven varieties from Belgium and some other varieties from various Eastern European countries. In 2014 and 2015 a few accessions of Scorzonera, Tragopogon porrifolius ssp. porrifolius were also collected in the Netherlands. After successful regeneration, the material will also be publicly available. All together the collection currently consists of 34 accessions.