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.
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
Zea mays L. · Maize
Allium cepa L. var. cepa · Onion
Pisum sativum L. · Pea
Allium cepa L. var. cepa · Onion
Lactuca sativa L. · Lettuce
Zea mays L. · Maize
Fragaria L. · Strawberry
Solanum tuberosum L. · Potato
Cichorium endivia L. · Endive
Royal Sluis BV (NL)
Fragaria L. · Strawberry
Beta vulgaris Sugar Beet Group · Sugar beet
Zea mays L. · Maize
Brassica rapa L. subsp. campestris (L.) A. R. Clapham · Field mustard
Cucumis sativus L. · Cucumber
Brassica rapa L. subsp. pekinensis (Lour.) Hanelt · Napa cabbage
Phaseolus vulgaris L. · Common bean
Beta vulgaris Sugar Beet Group · Sugar beet
Solanum lycopersicum L. · Tomato
Solanum lycopersicum L. · Tomato
Zea mays L. · Maize
Cucumis sativus L. · Cucumber
Lactuca sativa L. · Lettuce
Raphanus sativus L. var. sativus · Radish