Genus
Hemerocallis
72 US plant patents have been granted in this genus. 27 are already in the public domain — anyone may propagate and sell them. The next of the 45 still protected comes off patent on December 8, 2026.
Still under patent — 45 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Stephanie ReturnsPP18538Daylily plant named ‘Stephanie Returns’UNDER PATENTDecember 8, 2026
- RobdaystePP19205Hemerocallis plant named ‘Robdayste’UNDER PATENTJuly 15, 2027
- Dynamite ReturnsPP20002Daylily plant named ‘Dynamite Returns’UNDER PATENTNovember 9, 2027
- Mean Mister MustardPP20048Daylily plant named ‘Mean Mister Mustard’UNDER PATENTNovember 13, 2027
- SPd 06-02PP22181Hemerocallis plant named ‘SPd 06-02’UNDER PATENTJune 10, 2030
- Double Pardon MePP22799Daylily plant named ‘Double Pardon Me’UNDER PATENTSeptember 29, 2030
- Striped FantasticPP23154Hemerocallis plant named ‘Striped Fantastic’UNDER PATENTFebruary 8, 2031
- SPd 06-11PP23095Hemerocallis plant named ‘SPd 06-11’UNDER PATENTMay 31, 2031
- SPd 06-01PP23096Hemerocallis plant named ‘SPd 06-01’UNDER PATENTMay 31, 2031
- SPd 06-13PP23112Hemerocallis plant named ‘SPd 06-13’UNDER PATENTMay 31, 2031
- SPd 06-16PP23113Hemerocallis plant named ‘SPd 06-16’UNDER PATENTMay 31, 2031
- VT SpiritPP23155Hemerocallis plant named ‘VT Spirit’UNDER PATENTJune 21, 2031
- SPd 06-08PP23402Hemerocallis plant named ‘SPd 06-08’UNDER PATENTSeptember 19, 2031
- SPd 06-12PP23403Hemerocallis plant named ‘SPd 06-12’UNDER PATENTSeptember 20, 2031
- Centerton OnePP24129Daylily plant named ‘Centerton One’UNDER PATENTMay 2, 2032
- Connie MarksPP25334Hemerocallis plant named ‘Connie Marks’UNDER PATENTJanuary 13, 2033
- WF 712PP26325Hemerocallis plant named ‘WF 712’UNDER PATENTJune 13, 2034
- R5PP26326Hemerocallis plant named ‘R5’UNDER PATENTJune 13, 2034
- WF7-155PP26327Hemerocallis plant named ‘WF7-155’UNDER PATENTJune 13, 2034
- R10PP26328Hemerocallis plant named ‘R10’UNDER PATENTJune 13, 2034
- WF 73PP26329Hemerocallis plant named ‘WF 73’UNDER PATENTJune 18, 2034
- DHEMORANGEPP26627Hemerocallis plant named ‘DHEMORANGE’UNDER PATENTSeptember 18, 2034
- Happy Days Are Here AgainPP26628Daylily plant named ‘Happy Days Are Here Again’UNDER PATENTDecember 2, 2034
- Happy EnchantmentPP26629Daylily plant named ‘Happy Enchantment’UNDER PATENTDecember 3, 2034
- VER00213PP26605Hemerocallis plant named ‘VER00213’UNDER PATENTJanuary 12, 2035
- VER00204PP26906Hemerocallis plant named ‘VER00204’UNDER PATENTJanuary 12, 2035
- VER00198PP27004Hemerocallis plant named ‘VER00198’UNDER PATENTFebruary 23, 2035
- VER00112PP27115Hemerocallis plant named ‘VER00112’UNDER PATENTFebruary 26, 2035
- VER00157PP28484Hemerocallis plant named ‘VER00157’UNDER PATENTMarch 4, 2036
- VER00323PP28485Hemerocallis plant named ‘VER00323’UNDER PATENTMarch 4, 2036
- Orange SmoothiePP28643Hemerocallis plant named ‘Orange Smoothie’UNDER PATENTJune 4, 2036
- Blazing ReturnsPP28560Daylily plant named ‘Blazing Returns’UNDER PATENTJuly 12, 2036
- VER00322PP29136Hemerocallis plant named ‘VER00322’UNDER PATENTNovember 21, 2036
- Raspberry EclipsePP31809Hemerocallis plant named ‘Raspberry Eclipse’UNDER PATENTAugust 6, 2039
- Sound of My HeartPP33314Hemerocallis plant named ‘Sound of My Heart’UNDER PATENTNovember 26, 2039
- InkheartPP32364Hemerocallis plant named ‘Inkheart’UNDER PATENTJanuary 30, 2040
- Hungry EyesPP32365Hemerocallis plant named ‘Hungry Eyes’UNDER PATENTJanuary 30, 2040
- VER00329PP34805Hemerocallis plant named ‘VER00329’UNDER PATENTFebruary 14, 2042
- VER00330PP34836Hemerocallis plant named ‘VER00330’UNDER PATENTFebruary 14, 2042
- DLPG17947PP34995Hemerocallis plant named ‘DLPG17947’UNDER PATENTAugust 25, 2042
- Huhe01PP36218Hemerocallis plant named ‘Huhe01’UNDER PATENTFebruary 10, 2044
- G221407PP37089Hemerocallis plant named ‘G221407’UNDER PATENTJanuary 16, 2045
- Rule of PlumPP37344Hemerocallis plant named ‘Rule of Plum’UNDER PATENTDecember 2, 2045
- Honey BarbequePP37395Hemerocallis plant named ‘Honey Barbeque’UNDER PATENTDecember 2, 2045
- Bright NotePP37422Hemerocallis plant named ‘Bright Note’UNDER PATENTDecember 2, 2045
Already in the public domain — 27 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.
- Going BananasPP17164Hemerocallis plant named ‘Going Bananas’PUBLIC DOMAINNovember 24, 2025
- Endless HeartPP16515Daylily plant named ‘Endless Heart’PUBLIC DOMAINMay 3, 2025
- Just Plum HappyPP14841Daylily plant named ‘Just Plum Happy’PUBLIC DOMAINSeptember 15, 2023
- Sunset ReturnsPP13465Daylily plant named ‘Sunset Returns’PUBLIC DOMAINSeptember 14, 2021
- When My Sweetheart ReturnsPP13480Daylily plant named ‘When My Sweetheart Returns’PUBLIC DOMAINSeptember 14, 2021
- Romantic ReturnsPP13481Daylily plant named ‘Romantic Returns’PUBLIC DOMAINSeptember 14, 2021
- Red Hot ReturnsPP13499Daylily plant named ‘Red Hot Returns’PUBLIC DOMAINSeptember 14, 2021
- MaljaPP14221Hemerocallis hybrid named ‘Malja’PUBLIC DOMAINJune 15, 2021
- Apricot SparklesPP13223Daylily plant named ‘Apricot Sparkles’PUBLIC DOMAINApril 13, 2021
- Southern SparklePP12541Hemerocallis plant named ‘Southern Sparkle’PUBLIC DOMAINSeptember 8, 2020
- Calypso QueenPP12550Hemerocallis plant named ‘Calypso Queen’PUBLIC DOMAINSeptember 8, 2020
- Piper MitchellPP12706Hemerocallis plant named ‘Piper Mitchell’PUBLIC DOMAINSeptember 8, 2020
- Tiger TimePP12445Hemerocallis plant named ‘Tiger Time’PUBLIC DOMAINMay 3, 2020
- Dance PartyPP12456Hemerocallis plant named ‘Dance Party’PUBLIC DOMAINMay 3, 2020
- First SpringPP12475Hemerocallis plant named ‘First Spring’PUBLIC DOMAINMay 3, 2020
- RobbobeliPP11862Hemerocallis hybrid plant named ‘Robbobeli’PUBLIC DOMAINFebruary 12, 2019
- RobbobmarPP10975Hemerocallis plant named `Robbobmar`PUBLIC DOMAINDecember 9, 2017
- RobgloperPP10884Hemerocallis plant `Robgloper`PUBLIC DOMAINApril 30, 2017
- Rosy ReturnsPP9779Daylily named `Rosy Returns`PUBLIC DOMAINNovember 6, 2015
- Yellow Silk RufflesPP9372Daylily plant named `Yellow Silk Ruffles`PUBLIC DOMAINDecember 12, 2014
- Pink Silk RufflesPP9380Daylily plant named `Pink Silk Ruffles`PUBLIC DOMAINDecember 12, 2014
- Burgundy LacePP9386Daylily plant named `Burgundy Lace`PUBLIC DOMAINDecember 12, 2014
- X-2PP9387Daylily plant named `X-2`PUBLIC DOMAINDecember 12, 2014
- Fragrant TreasurePP8140Daylily plant named Fragrant TreasurePUBLIC DOMAINAugust 13, 2011
- Black Eyed StellaPP7909Daylily named Black Eyed StellaPUBLIC DOMAINJune 14, 2010
- Aztec YellowPP7409Daylily cultivar named Aztec YellowPUBLIC DOMAINFebruary 14, 2010
- Colonel ScarboroughPP7357Daylily plant named `Colonel Scarborough`PUBLIC DOMAINAugust 8, 2009
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.