Dianthus caryophyllus or carnation does not display hazardous or weedy characteristics and is used in the floriculture industry for cut flowers. Modern cultivars are maintained by vegetative propagation.

The biology of carnation is such that there are no reasonable means for the genetically modified plants to escape from cultivation and become established as populations in the wild, or for gene dispersal from the genetically modified carnation to occur. The commercial standard carnation varieties are generally male sterile and rarely produce anthers; and if they do, little pollen is produced and this can only be transferred by insects. In commercial carnation production, outcrossing is unlikely as flowers are cut before opening. Should flowers open, only certain insects are easily able to access nectaries in flowers and there are very few opportunities for this to occur during transit and sale. Furthermore, carnations plants require 6 weeks for seed development and cut carnation flowers last only 3-4 weeks, which is not enough time for seed set.