Most cauliflower varieties used in professional gardening nowadays are hybrids, many bred with CMS technology (Cytoplasmatic male sterility). René Groenen is working on the alternative: Open pollinated cauliflower varieties for professional organic gardening. Since 2000, Groenen is full time dedicated to the propagation of vegetable seeds and breeding of varieties. www.degroenenhof.nl
René Groenen is part of the vegetable breeders association Kultursaat e.V.