Public domain
Plant breeders' rights are granted for a limited term. Upon expiration, the variety enters the public domain: its seeds can be propagated and sold without the rights holder's license.
Recent years are the most sought-after: the variety is free to use but still in production.
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Valerianella locusta (L.) Laterr. · Corn salad
Enza Zaden (NL)
Chrysanthemum L. · Chrysanthemum
Chrysanthemum L. · Chrysanthemum
Tulipa L. · Tulip
Chrysanthemum L. · Chrysanthemum
Gerbera L. · Gerbera
Cichorium intybus L. (Industrial Chicory Group) · Chicory
Lolium multiflorum Lam. · Italian ryegrass
Pisum sativum L. · Pea
Ficus benjamina L. · Weeping fig
Lactuca sativa L. · Lettuce
Zea mays L. · Maize
Tulipa L. · Tulip
Dianthus caryophyllus L. · Carnation
Freesia Eckl. ex Klatt · Freesia
Silphium perfoliatum L. · Cup plant
Dianthus caryophyllus L. · Carnation
Chrysanthemum L. · Chrysanthemum
Impatiens L. · Balsam
Impatiens L. · Balsam
Rhipsalis Gaertn. · Mistletoe cactus
Begonia L. · Begonia
Chrysanthemum L. · Chrysanthemum