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.
Cichorium endivia L. · Endive
Royal Sluis (NL)
Cichorium endivia L. · Endive
Royal Sluis (NL)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Saatzucht Quedlinburg-DE
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan (NL)
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Rijk Zwaan (NL)
Brassica oleracea L. (White Cabbage Group) · White cabbage
Allium sativum L. · Garlic
Solanum melongena L. · Eggplant
Beta vulgaris Garden Beet Group · Garden beet
Allium sativum L. · Garlic
Solanum lycopersicum L. · Tomato
Zea mays L. subsp. mays (Maize Group) · Maize
Solanum melongena L. · Eggplant
Daucus carota L. · Carrot
Beta vulgaris Garden Beet Group · Garden beet
Cucumis melo L. · Melon
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Rosa L. · Rose
Zea mays L. subsp. mays (Sweet Corn Group) · Sweet corn
Cucumis sativus L. · Cucumber
Hordeum vulgare L. · Barley
Capsicum annuum L. · Bell pepper
Brassica oleracea L. (White Cabbage Group) · White cabbage