Genus
Aster
130 US plant patents have been granted in this genus. 83 are already in the public domain — anyone may propagate and sell them. The next of the 47 still protected comes off patent on February 14, 2027.
Still under patent — 47 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Yohenry the ThirdPP19016Aster plant named ‘Yohenry the Third’UNDER PATENTFebruary 14, 2027
- Yomarie the ThirdPP19017Aster plant named ‘Yomarie the Third’UNDER PATENTFebruary 14, 2027
- Yopeter the ThirdPP19018Aster plant named ‘Yopeter the Third’UNDER PATENTFebruary 14, 2027
- YofrolicPP19104Aster plant named ‘Yofrolic’UNDER PATENTFebruary 14, 2027
- Victoria MathildePP19930Aster plant named ‘Victoria Mathilde’UNDER PATENTApril 16, 2027
- Blue DiamondPP19449Aster plant named ‘Blue Diamond’UNDER PATENTJuly 27, 2027
- StarshinePP19403Aster plant named ‘Starshine’UNDER PATENTOctober 11, 2027
- Vibrant DomePP19538Aster plant named ‘Vibrant Dome’UNDER PATENTJanuary 31, 2028
- YohazyPP20261Aster plant named ‘Yohazy’UNDER PATENTJune 16, 2028
- YodaysPP20288Aster Plant Named ‘Yodays’UNDER PATENTJune 16, 2028
- DASDEMPP21116Aster plant named ‘DASDEM’UNDER PATENTFebruary 26, 2029
- DasjesPP21117Aster plants named ‘Dasjes’UNDER PATENTFebruary 26, 2029
- DASKATPP21147Aster plant named ‘DASKAT’UNDER PATENTFebruary 26, 2029
- DASINGPP21166Aster plant named ‘DASING’UNDER PATENTFebruary 26, 2029
- DASDEBIPP21211Aster plant named ‘DASDEBI’UNDER PATENTFebruary 26, 2029
- KiastgranaPP21308Aster plant named ‘Kiastgrana’UNDER PATENTMay 4, 2029
- Pink YomagicPP21190Aster plant named ‘Pink Yomagic’UNDER PATENTJune 9, 2029
- Pink Yohenry the ThirdPP21189Aster plant named ‘Pink Yohenry the Third’UNDER PATENTJuly 14, 2029
- ESM A002PP21625Aster plant named ‘ESM A002’UNDER PATENTOctober 7, 2029
- KiastlavmiPP22126Aster plant named ‘Kiastlavmi’UNDER PATENTSeptember 9, 2030
- Synpin HenfirstPP22702Aster plant named ‘Synpin Henfirst’UNDER PATENTNovember 13, 2030
- Synbul HenfirstPP22703Aster plant named ‘Synbul Henfirst’UNDER PATENTNovember 13, 2030
- SynfrostPP22751Aster plant named ‘Synfrost’UNDER PATENTNovember 13, 2030
- Synhen ThefirstPP22752Aster plant named ‘Synhen Thefirst’UNDER PATENTNovember 13, 2030
- Syast DraipPP23320Aster plant named ‘Syast Draip’UNDER PATENTJune 24, 2031
- DASMAGPP23827Aster plant named ‘DASMAG’UNDER PATENTSeptember 12, 2031
- DASGRAPP23828Aster plant named ‘DASGRA’UNDER PATENTSeptember 12, 2031
- BKATRWTPP23967Aster plant named ‘BKATRWT’UNDER PATENTFebruary 29, 2032
- BKATRRVPP23968Aster plant named ‘BKATRRV’UNDER PATENTFebruary 29, 2032
- BKATRPUPP23990Aster plant named ‘BKATRPU’UNDER PATENTMarch 5, 2032
- Victoria XenianPP24160Aster plant named ‘Victoria Xenian’UNDER PATENTMay 17, 2032
- Bridal VeilPP23966Aster plant named ‘Bridal Veil’UNDER PATENTMay 20, 2032
- MYPOT0001PP27803Aster plant named ‘MYPOT0001’UNDER PATENTSeptember 15, 2035
- X BluePP29109Aster plant named ‘X Blue’UNDER PATENTApril 22, 2036
- X WhitePP29110Aster plant named ‘X White’UNDER PATENTApril 22, 2036
- X PinkPP29111Aster plant named ‘X Pink’UNDER PATENTApril 22, 2036
- ZanasnowhiPP29457Aster plant named ‘Zanasnowhi’UNDER PATENTMay 31, 2036
- ZanaslisuPP29228Aster plant named ‘Zanaslisu’UNDER PATENTJune 15, 2036
- ZanasparroPP29184Aster plant named ‘Zanasparro’UNDER PATENTSeptember 6, 2036
- ZanasprepiPP29185Aster plant named ‘Zanasprepi’UNDER PATENTSeptember 6, 2036
- ZanashopiPP29186Aster plant named ‘Zanashopi’UNDER PATENTSeptember 12, 2036
- ZanasblubaPP29187Aster plant named ‘Zanasbluba’UNDER PATENTSeptember 14, 2036
- Billowing VioletPP32557Aster plant named ‘Billowing Violet’UNDER PATENTFebruary 17, 2040
- Billowing PinkPP32556Aster plant named ‘Billowing Pink’UNDER PATENTFebruary 19, 2040
- Grape CrushPP33612Aster plant named ‘Grape Crush’UNDER PATENTFebruary 23, 2041
- Pink CrushPP33628Aster plant named ‘Pink Crush’UNDER PATENTFebruary 23, 2041
- Cotton CandyPP34580Aster plant named ‘Cotton Candy’UNDER PATENTNovember 16, 2041
Already in the public domain — 83 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.
- YotwistPP18741Aster plant named ‘Yotwist’PUBLIC DOMAINJune 22, 2026
- YosloopyPP18748Aster plant named ‘Yosloopy’PUBLIC DOMAINJune 22, 2026
- YoshoutPP18762Aster plant named ‘Yoshout’PUBLIC DOMAINJune 22, 2026
- Pretty WendyPP18539Aster plant named ‘Pretty Wendy’PUBLIC DOMAINMay 24, 2026
- Oudshoorn 1PP17400Aster plant named ‘Oudshoorn 1’PUBLIC DOMAINJuly 2, 2025
- EsmholandaPP16379Aster plant named ‘Esmholanda’PUBLIC DOMAINMarch 25, 2025
- YobelieverPP16457Aster plant named ‘Yobeliever’PUBLIC DOMAINMarch 25, 2025
- YodaydreamPP16366Aster plant named ‘Yodaydream’PUBLIC DOMAINFebruary 25, 2025
- YoballadPP16318Aster plant named ‘Yoballad’PUBLIC DOMAINFebruary 11, 2025
- CefortunaPP16749Aster plant named ‘Cefortuna’PUBLIC DOMAINJanuary 31, 2025
- EsmnicaraguaPP16380Aster plant named ‘Esmnicaragua’PUBLIC DOMAINJanuary 20, 2025
- EsmguatamalaPP16274Aster plant named ‘Esmguatamala’PUBLIC DOMAINDecember 16, 2024
- EsmguyanaPP16133Aster plant named ‘Esmguyana’PUBLIC DOMAINNovember 26, 2024
- KiestrblPP16083Aster plant named ‘Kiestrbl’PUBLIC DOMAINNovember 16, 2024
- EsmbrasilPP16107Aster plant named ‘Esmbrasil’PUBLIC DOMAINNovember 5, 2024
- EsmorePP16195Aster plant named ‘Esmore’PUBLIC DOMAINNovember 4, 2024
- EsmchilePP16132Aster plant named ‘Esmchile’PUBLIC DOMAINSeptember 23, 2024
- EsmallPP16410Aster plant named ‘Esmall’PUBLIC DOMAINJuly 4, 2024
- YodragonPP15906Aster plant named ‘Yodragon’PUBLIC DOMAINJune 28, 2024
- YomelodyPP15822Aster plant named ‘Yomelody’PUBLIC DOMAINMay 24, 2024
- Blue Lake BlimPP17700Aster tataricus plant named ‘Blue Lake Blim’PUBLIC DOMAINMay 15, 2024
- YomagicPP15690Aster plant named ‘Yomagic’PUBLIC DOMAINApril 5, 2024
- YopuffPP15691Aster plant named ‘Yopuff’PUBLIC DOMAINApril 5, 2024
- Victoria IlonaPP15275Aster plant named ‘Victoria Ilona’PUBLIC DOMAINFebruary 2, 2024
- Victoria GabyPP15279Aster plant named ‘Victoria Gaby’PUBLIC DOMAINFebruary 2, 2024
- EsmartPP15316Aster plant named ‘Esmart’PUBLIC DOMAINFebruary 2, 2024
- Blue LakePP15775Aster tataricus plant named ‘Blue Lake’PUBLIC DOMAINAugust 2, 2023
- DynasterPP15262Aster plant named ‘Dynaster’PUBLIC DOMAINMay 19, 2023
- DukasterPP15100Aster plant named ‘Dukaster’PUBLIC DOMAINMay 1, 2023
- MoercassinoPP13572Aster plant named ‘Moercassino’PUBLIC DOMAINMarch 15, 2022
- Victoria CelestePP13333Aster plant named ‘Victoria Celeste’PUBLIC DOMAINFebruary 15, 2022
- Victoria ElisabethPP13334Aster plant named ‘Victoria Elisabeth’PUBLIC DOMAINFebruary 15, 2022
- Victoria DianaPP13359Aster plant named ‘Victoria Diana’PUBLIC DOMAINFebruary 15, 2022
- Victoria FannyPP13360Aster plant named ‘Victoria Fanny’PUBLIC DOMAINFebruary 15, 2022
- ChelseaPP12903Aster plant named ‘Chelsea’PUBLIC DOMAINJuly 28, 2020
- CassandraPP12840Aster plant named ‘Cassandra’PUBLIC DOMAINJuly 7, 2020
- MoercassPP12150Aster plant named ‘Moercass’PUBLIC DOMAINJune 12, 2020
- M.C. SnowyPP12211Aster plant named ‘M.C. Snowy’PUBLIC DOMAINMarch 5, 2019
- Pink MilkaPP12461Aster plant named ‘Pink Milka’PUBLIC DOMAINMarch 5, 2019
- Karmijn MilkaPP12466Aster plant named ‘Karmijn Milka’PUBLIC DOMAINMarch 5, 2019
- Dark MilkaPP12932Aster plant named ‘Dark Milka’PUBLIC DOMAINMarch 5, 2019
- DasonePP11450Aster plant named `Dasone`PUBLIC DOMAINSeptember 3, 2018
- DasfourPP11451Aster plant named `Dasfour`PUBLIC DOMAINSeptember 3, 2018
- DasthreePP11452Aster plant named `Dasthree`PUBLIC DOMAINSeptember 3, 2018
- Peter's WhitePP10783Aster plant named `Peter's White`PUBLIC DOMAINApril 14, 2017
- Odin VikingPP10360Aster plant named `Odin Viking`PUBLIC DOMAINDecember 26, 2016
- Freja VikingPP10356Aster plant named `Freja Viking`PUBLIC DOMAINDecember 23, 2016
- Purple VikingPP10357Aster plant named `Purple Viking`PUBLIC DOMAINDecember 23, 2016
- Margrethe VikingPP10358Aster plant named `Margrethe Viking`PUBLIC DOMAINDecember 23, 2016
- Loke VikingPP10359Aster plant named `Loke Viking`PUBLIC DOMAINDecember 23, 2016
- Thyra VikingPP10361Aster plant named `Thyra Viking`PUBLIC DOMAINDecember 23, 2016
- Patricia VikingPP10645Aster plant named `Patricia Viking`PUBLIC DOMAINDecember 23, 2016
- ArielPP10812Aster plant named `Ariel`PUBLIC DOMAINAugust 8, 2016
- MilkaPP10602Aster plant named `Milka`PUBLIC DOMAINJune 17, 2016
- KarmijnPP10624Aster plant named `Karmijn`PUBLIC DOMAINJune 17, 2016
- ParadePP10679Aster plant named `Parade`PUBLIC DOMAINJune 17, 2016
- Red MonarchPP10062Aster plant named `Red Monarch`PUBLIC DOMAINJune 3, 2016
- CelestePP10051Aster plant named `Celeste`PUBLIC DOMAINMarch 15, 2016
- SunbirdPP9642Aster plant named `Sunbird`PUBLIC DOMAINJune 6, 2015
- SunrioPP9655Aster plant named `Sunrio`PUBLIC DOMAINJune 6, 2015
- SungalPP9163Aster plant named `Sungal`PUBLIC DOMAINAugust 16, 2014
- SunsolPP9175Aster plant named `Sunsol`PUBLIC DOMAINAugust 16, 2014
- SunstarPP9291Aster plant named `Sunstar`PUBLIC DOMAINAugust 16, 2014
- SuntanaPP9300Aster plant named `Suntana`PUBLIC DOMAINAugust 16, 2014
- Pink MasterPP8731Aster plant named Pink MasterPUBLIC DOMAINJuly 6, 2013
- White MasterPP8749Aster plant named White MasterPUBLIC DOMAINJuly 6, 2013
- pink CasinoPP8780Aster plant named pink CasinoPUBLIC DOMAINJuly 6, 2013
- Dark Blue ButterflyPP8874Aster plant named Dark Blue ButterflyPUBLIC DOMAINJanuary 21, 2013
- CasablancaPP8875Aster plant named CasablancaPUBLIC DOMAINJanuary 21, 2013
- Aster plant named Lilac Blue AdmiralPP8384PUBLIC DOMAINJune 9, 2012
- SkipperPP8385Aster plant named Pink SkipperPUBLIC DOMAINJune 9, 2012
- PaintedPP8386Aster plant named Painted LadyPUBLIC DOMAINJune 9, 2012
- Aster plant named Purple MonarchPP8387PUBLIC DOMAINJune 9, 2012
- Aster plant named Mother of PearlPP8388PUBLIC DOMAINJune 9, 2012
- SunshirPP8158Aster plant named SunshirPUBLIC DOMAINApril 19, 2011
- SuntopPP8159Aster plant named SuntopPUBLIC DOMAINApril 19, 2011
- SunjoyPP8160Aster plant named SunjoyPUBLIC DOMAINApril 19, 2011
- SunrosePP8271Aster plant named SunrosePUBLIC DOMAINApril 19, 2011
- Dark Pink StarPP7786Aster plant named Dark Pink StarPUBLIC DOMAINOctober 29, 2010
- White ButterflyPP7397Aster plant named White ButterflyPUBLIC DOMAINJuly 11, 2009
- Blue ButterflyPP7399Aster plant named Blue ButterflyPUBLIC DOMAINJuly 11, 2009
- Rose ButterflyPP7400Aster plant named Rose ButterflyPUBLIC DOMAINJuly 11, 2009
- Pink ButterflyPP7401Aster plant named Pink ButterflyPUBLIC DOMAINJuly 11, 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.