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.
Vicia faba L. var. major Harz · Broad bean
Semenarna Ljubljana, SI
Trifolium repens L. · White clover
DLF-Trifolium (DK)
Raphanus sativus L. · Radish
Semenarna Ljubljana, SI
Bellis perennis L. · Lawn daisy
Zea mays L. · Maize
Euphorbia fulgens Karw. ex Klotzsch · Scarlet plume
Pisum sativum L. · Pea
Asgrow (IT)
Beta vulgaris Sugar Beet Group · Sugar beet
Melilotus albus Medik. · White sweet clover
Gladiolus L. · Gladiolus
Beta vulgaris Garden Beet Group · Garden beet
Bejo Zaden (NL)
Solanum tuberosum L. · Potato
Brassica oleracea L. (White Cabbage Group) · White cabbage
Saatzucht Quedlinburg-DE
Beta vulgaris Sugar Beet Group · Sugar beet
Tulipa L. · Tulip
Zea mays L. · Maize
Apium graveolens L. var. dulce (Mill.) Pers. · Celery
Petoseed, US
Glycine max (L.) Merr. · Soybean
Beta vulgaris Sugar Beet Group · Sugar beet
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Pisum sativum L. · Pea
Brassica oleracea L. (Savoy Cabbage Group) · Savoy cabbage
Zea mays L. · Maize
Zea mays L. · Maize