Genus
Gladiolus
21 US plant patents have been granted in this genus. 21 are already in the public domain — anyone may propagate and sell them.
Already in the public domain — 21 cultivars
Most recently freed first. Anyone may propagate and sell these plants — though the name it is sold under may still be a live trademark.
- The SaintPP15626Gladiolus hybrid plant ‘The Saint’PUBLIC DOMAINSeptember 6, 2022
- Magic LavenderPP14792Gladiolus plant named ‘Magic Lavender’PUBLIC DOMAINJune 17, 2022
- White KnightPP15092Gladiolus plant named ‘White Knight’PUBLIC DOMAINApril 24, 2022
- GracePP14979Gladiolus hybrid plant ‘Grace’PUBLIC DOMAINMarch 25, 2022
- Palampur PridePP14980Gladiolus hybrid plant ‘Palampur Pride’PUBLIC DOMAINMarch 25, 2022
- Palampur DelightPP15080Gladiolus hybrid plant ‘Palampur Delight’PUBLIC DOMAINMarch 25, 2022
- Prissy's PurplePP14081Gladiolus plant named ‘Prissy's Purple’PUBLIC DOMAINJuly 31, 2021
- Euro BlancaPP14108Gladiolus plant named ‘Euro Blanca’PUBLIC DOMAINJuly 31, 2021
- Golden GoddessPP14350Gladiolus plant named ‘Golden Goddess’PUBLIC DOMAINJuly 19, 2021
- Alexandra The GreatPP13782Gladiolus plant named ‘Alexandra The Great’PUBLIC DOMAINJune 8, 2021
- SiberiaPP13886Gladiolus plant named ‘Siberia’PUBLIC DOMAINJune 8, 2021
- Princess LeePP14021Gladiolus plant named ‘Princess Lee’PUBLIC DOMAINJune 8, 2021
- FestivaPP14074Gladiolus plant named ‘Festiva’PUBLIC DOMAINJune 8, 2021
- Palampur PrincessPP14435Gladiolus plant named ‘Palampur Princess’PUBLIC DOMAINMay 4, 2021
- AnuragPP13353Gladiolus plant named ‘Anurag’PUBLIC DOMAINMarch 27, 2021
- Brick BeautyPP13417Gladiolus hybrid plant ‘Brick Beauty’PUBLIC DOMAINMarch 27, 2021
- Palampur QueenPP13418Gladiolus hybrid plant named ‘Palampur Queen’PUBLIC DOMAINMarch 23, 2021
- Cute MunniPP13591Gladiolus hybrid plant named ‘Cute Munni’PUBLIC DOMAINMarch 22, 2021
- Tushar MauliPP13710Gladiolus hybrid plant named ‘Tushar Mauli’PUBLIC DOMAINMarch 22, 2021
- Rosiebee RedPP13737Gladiolus plant named ‘Rosiebee Red’PUBLIC DOMAINDecember 20, 2020
- Georgia PeachPP13990Gladiolus plant named ‘Georgia Peach’PUBLIC DOMAINDecember 20, 2020
A patent expiring frees the plant, and its cultivar name comes with it — cultivar names cannot be trademarked, so they are always free to use. What it does not free is any brand name the plant is marketed under. Those are trademarks and renew indefinitely.