Genus
Rhododendron
265 US plant patents have been granted in this genus. 128 are already in the public domain — anyone may propagate and sell them. The next of the 137 still protected comes off patent on March 20, 2027.
Still under patent — 137 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- ProvencePP18947Azalea plant named ‘Provence’UNDER PATENTMarch 20, 2027
- TiaraPP18948Azalea plant named ‘Tiara’UNDER PATENTMarch 20, 2027
- YBAZ-2028 Cotton CandyPP18949Azalea plant named “YBAZ-2028 Cotton Candy”UNDER PATENTMarch 20, 2027
- YBAZ-2147PP18951Azalea plant named ‘YBAZ-2147’UNDER PATENTMarch 20, 2027
- RobleoPP19899Azalea plant named ‘Robleo’UNDER PATENTMay 17, 2027
- OryuPP19198Azalea plant named ‘Oryu’UNDER PATENTMay 26, 2027
- Rhodunter 149PP20749Rhododendron rootstock named ‘Rhodunter 149’UNDER PATENTApril 14, 2028
- Hort200101PP20706Rhododendron plant named ‘Hort200101’UNDER PATENTJuly 23, 2028
- Hort200001PP20726Rhododendron plant named ‘Hort200001’UNDER PATENTJuly 23, 2028
- FujiPP21160Rhododendron plant named ‘Fuji’UNDER PATENTApril 20, 2029
- YBAZ-1892PP21474Azalea plant named ‘YBAZ-1892’UNDER PATENTJuly 1, 2029
- YBAZ-2504PP21475Azalea plant named ‘YBAZ-2504’UNDER PATENTJuly 1, 2029
- ArismajestyPP21633Azalea plant named ‘Arismajesty’UNDER PATENTJuly 1, 2029
- RLH1-4P19PP21476Azalea plant named ‘RLH1-4P19’UNDER PATENTSeptember 18, 2029
- RLH1-2P8PP21477Azalea plant named ‘RLH1-2P8’UNDER PATENTSeptember 18, 2029
- RLH1-3P3PP21512Azalea plant named ‘RLH1-3P3’UNDER PATENTSeptember 18, 2029
- RLH1-1P2PP21562Azalea plant named ‘RLH1-1P2’UNDER PATENTSeptember 18, 2029
- HORT01PP21982Rhododendron plant named ‘HORT01’UNDER PATENTNovember 12, 2029
- MNIHAR010PP22545Azalea plant named ‘MNIHAR010’UNDER PATENTApril 29, 2030
- FarrowPP22209Rhododendron Plant named ‘Farrow’UNDER PATENTSeptember 14, 2030
- RoblesPP22762Azalea plant named ‘Robles’UNDER PATENTDecember 10, 2030
- MNIHAR017PP23109Azalea plant named ‘MNIHAR017’UNDER PATENTJanuary 7, 2031
- MNIHAR013PP23005Azalea plant named ‘MNIHAR013’UNDER PATENTJanuary 14, 2031
- MNIHAR012PP23006Azalea plant named ‘MNIHAR012’UNDER PATENTJanuary 14, 2031
- MNIHAR015PP23025Azalea plant named ‘MNIHAR015’UNDER PATENTJanuary 14, 2031
- MNIHAR011PP23093Azalea plant named ‘MNIHAR011’UNDER PATENTJanuary 14, 2031
- MNIHAR016PP23094Azalea plant named ‘MNIHAR016’UNDER PATENTJanuary 19, 2031
- MNIHAR014PP23108Azalea plant named ‘MNIHAR014’UNDER PATENTJanuary 21, 2031
- MNIHAR018PP23100Azalea plant named ‘MNIHAR018’UNDER PATENTFebruary 5, 2031
- MNIHAR019PP22795Azalea plant named ‘MNIHAR019’UNDER PATENTFebruary 25, 2031
- STEWARDPP27876Azalea plant named ‘STEWARD’UNDER PATENTJuly 30, 2031
- MNIHAR023PP24754Azalea plant named ‘MNIHAR023’UNDER PATENTJune 14, 2032
- MNIHAR022PP24753Azalea plant named ‘MNIHAR022’UNDER PATENTJune 24, 2032
- MNIHAR020PP24782Azalea plant named ‘MNIHAR020’UNDER PATENTJune 24, 2032
- MNIHAR025PP24335Azalea plant named ‘MNIHAR025’UNDER PATENTOctober 6, 2032
- RLH1-12P0PP24467Azalea plant named ‘RLH1-12P0’UNDER PATENTOctober 8, 2032
- RLH1-10P18PP24493Azalea plant named ‘RLH1-10P18’UNDER PATENTOctober 8, 2032
- RLH1-8P1PP24494Azalea plant named ‘RLH1-8P1’UNDER PATENTOctober 8, 2032
- RLH1-6P4PP24495Azalea plant named ‘RLH1-6P4’UNDER PATENTOctober 8, 2032
- MNIHAR026PP24384Azalea plant named ‘MNIHAR026’UNDER PATENTOctober 10, 2032
- MNIHAR024PP24375Azalea plant named ‘MNIHAR024’UNDER PATENTOctober 11, 2032
- MNIHAR027PP24383Azalea plant named ‘MNIHAR027’UNDER PATENTOctober 11, 2032
- Rhodunter 150PP25235Rhododendron rootstock named ‘Rhodunter 150’UNDER PATENTOctober 30, 2032
- MNIHAR029PP24424Azalea plant named ‘MNIHAR029’UNDER PATENTNovember 21, 2032
- ROBLEVPP25046Azalea plant named ‘ROBLEV’UNDER PATENTJanuary 7, 2033
- ROBLETPP25072Rhododendron plant named ‘ROBLET’UNDER PATENTJanuary 7, 2033
- ROBLEXPP25073Azalea plant named‘ROBLEX’UNDER PATENTJanuary 7, 2033
- ROBLEUPP25074Rhododendron plant named ‘ROBLEU’UNDER PATENTJanuary 7, 2033
- RLH1-15P3PP24750Azalea plant named ‘RLH1-15P3’UNDER PATENTFebruary 2, 2033
- RLH1-7P14PP24752Azalea plant named ‘RLH1-7P14’UNDER PATENTFebruary 9, 2033
- RLH1-13P11PP24781Azalea plant named ‘RLH1-13P11’UNDER PATENTFebruary 9, 2033
- MNIHAR028PP25047Azalea plant named ‘MNIHAR028’UNDER PATENTFebruary 23, 2033
- RLH1-5P1PP24975Azalea plant named ‘RLH1-5P1’UNDER PATENTMarch 3, 2033
- Azalea plant named RLH1-14P14PP24751UNDER PATENTMarch 5, 2033
- JulonsoPP25306Rhododendron indicum plant named ‘Julonso’UNDER PATENTApril 11, 2033
- HORT09PP25576Rhododendron plant named ‘HORT09’UNDER PATENTSeptember 20, 2033
- AZ 32PP25706Azalea plant named ‘AZ 32’UNDER PATENTJanuary 31, 2034
- AZ 47PP25769Azalea plant named ‘AZ 47’UNDER PATENTFebruary 1, 2034
- AZ 15PP25728Azalea plant named ‘AZ 15’UNDER PATENTFebruary 12, 2034
- AZ 35PP25797Azalea plant named ‘AZ 35’UNDER PATENTMarch 18, 2034
- AZ 16PP26436Azalea plant named ‘AZ 16’UNDER PATENTApril 8, 2034
- HOMLEBPP26038Rhododendron plant named ‘HOMLEB’UNDER PATENTApril 23, 2034
- HOMLECPP26277Rhododendron plant named ‘HOMLEC’UNDER PATENTApril 23, 2034
- HOMLEDPP26303Rhododendron plant named ‘HOMLED’UNDER PATENTApril 23, 2034
- HOMLEEPP26304Rhododendron plant named ‘HOMLEE’UNDER PATENTApril 23, 2034
- HOMLEAPP26037Rhododendron plant named ‘HOMLEA’UNDER PATENTApril 26, 2034
- UMNAZ 502PP26601Rhododendron plant named ‘UMNAZ 502’UNDER PATENTJune 30, 2034
- UMNAZ 493PP26600Rhododendron plant named ‘UMNAZ 493’UNDER PATENTJuly 4, 2034
- QBACKBPP27083Rhododendron plant named ‘QBACKB’UNDER PATENTSeptember 24, 2034
- QBackAPP27082Rhododendron plant named ‘QBackA’UNDER PATENTSeptember 25, 2034
- WALPINRUFPP26544Rhododendron plant named ‘WALPINRUF’UNDER PATENTOctober 3, 2034
- WALSANBARBPP26545Rhododendron plant named ‘WALSANBARB’UNDER PATENTOctober 7, 2034
- WALSNOWRUFPP26996Rhododendron plant named ‘WALSNOWRUF’UNDER PATENTNovember 11, 2034
- LavJ2011PP26976Rhododendron plant named ‘LavJ2011’UNDER PATENTDecember 7, 2034
- AZ 56PP26883Azalea plant named ‘AZ 56’UNDER PATENTJanuary 23, 2035
- PJM Elite StarPP27780Rhododendron plant named ‘PJM Elite Star’UNDER PATENTJune 15, 2035
- LazamoravPP27470Azalea plant named ‘Lazamorav’UNDER PATENTAugust 18, 2035
- LazamoropiPP27521Azalea plant named ‘Lazamoropi’UNDER PATENTAugust 18, 2035
- LazamorinkPP27522Azalea plant named ‘Lazamorink’UNDER PATENTAugust 18, 2035
- LazamoredPP27523Azalea plant named ‘Lazamored’UNDER PATENTAugust 18, 2035
- Microhirs3PP28473Rhododendron plant named ‘Microhirs3’UNDER PATENTSeptember 15, 2035
- ROBLEZPP28279Rhododendron plant named ‘ROBLEZ’UNDER PATENTOctober 20, 2035
- RLH1-11P1PP27900Azalea plant named ‘RLH1-11P1’UNDER PATENTOctober 21, 2035
- RLH1-9P7PP27877Azalea plant named ‘RLH1-9P7’UNDER PATENTOctober 27, 2035
- BAILEAPP28097Rhododendron plant named ‘BAILEA’UNDER PATENTDecember 31, 2035
- BAILECPP28727Rhododendron plant named ‘BAILEC’UNDER PATENTFebruary 17, 2036
- BAILEBPP28728Rhododendron plant named ‘BAILEB’UNDER PATENTFebruary 17, 2036
- HORT12PP28050Rhododendron plant named ‘HORT12’UNDER PATENTMarch 23, 2036
- HORT13PP28061Rhododendron plant named ‘HORT13’UNDER PATENTMarch 23, 2036
- HORT14PP28083Rhododendron plant named ‘HORT14’UNDER PATENTMarch 23, 2036
- WHA01PP28972Rhododendron plant named ‘WHA01’UNDER PATENTAugust 18, 2036
- MFARSSPP28697Rhododendron ‘MFARSS’UNDER PATENTAugust 29, 2036
- ROBLEZAPP29770Rhododendron plant named ‘ROBLEZA’UNDER PATENTSeptember 19, 2037
- HOLDEN52PP30235Rhododendron plant named ‘HOLDEN52’UNDER PATENTSeptember 19, 2037
- NCRX1PP31150Rhododendron plant named ‘NCRX1’UNDER PATENTAugust 16, 2038
- RLH1-19P17PP31043Azalea plant named ‘RLH1-19P17’UNDER PATENTSeptember 7, 2038
- RLH2-4P1-5PP31114Azalea plant named ‘RLH2-4P1-5’UNDER PATENTSeptember 7, 2038
- RLH2-3P8-2PP31116Azalea plant named ‘RLH2-3P8-2’UNDER PATENTSeptember 7, 2038
- RLH2-2PA1SPP31115Azalea plant named ‘RLH2-2PA1S’UNDER PATENTOctober 10, 2038
- NCRX2PP31898Rhododendron plant named ‘NCRX2’UNDER PATENTMarch 28, 2039
- KuraangelPP32314Rhododendron plant named ‘Kuraangel’UNDER PATENTMarch 28, 2039
- KurachouchouPP32315Rhododendron plant named ‘Kurachouchou’UNDER PATENTMarch 28, 2039
- TritonPP32356Rhododendron plant named ‘Triton’UNDER PATENTMarch 28, 2039
- KurachiffonPP32398Rhododendron plant named ‘Kurachiffon’UNDER PATENTMarch 28, 2039
- NCRX3PP32819Rhododendron plant named ‘NCRX3’UNDER PATENTNovember 12, 2039
- ROBLEZEPP32506Rhododendron plant named ‘ROBLEZE’UNDER PATENTDecember 10, 2039
- ROBLEZFPP32507Rhododendron plant named ‘ROBLEZF’UNDER PATENTDecember 10, 2039
- ROBLEZDPP32967Rhododendron plant named ‘ROBLEZD’UNDER PATENTDecember 10, 2039
- NCRX4PP33205Azalea plant named ‘NCRX4’UNDER PATENTJune 16, 2040
- Microhirs9PP32968Rhododendron plant named ‘Microhirs9’UNDER PATENTJuly 14, 2040
- HoldenRhodo201PP33594Rhododendron plant named ‘HoldenRhodo201’UNDER PATENTOctober 6, 2040
- Royal ResiliencePP33702Rhododendron plant named ‘Royal Resilience’UNDER PATENTMarch 22, 2041
- UMNAZ633PP33787Rhododendron plant named ‘UMNAZ633’UNDER PATENTApril 8, 2041
- NCRX5PP33900Azalea plant named ‘NCRX5’UNDER PATENTJune 9, 2041
- NCRX8PP33922Azalea plant ‘NCRX8’UNDER PATENTJune 9, 2041
- NCRX7PP33923Azalea plant ‘NCRX7’UNDER PATENTJune 9, 2041
- NCRX6PP33945Azalea plant named ‘NCRX6’UNDER PATENTJune 9, 2041
- Spring MatePP34194Rhododendron plant named ‘Spring Mate’UNDER PATENTOctober 21, 2041
- HoldenRhodo214PP34542Rhododendron plant named ‘HoldenRhodo214’UNDER PATENTDecember 14, 2041
- HoldenRhodo213PP34540Rhododendron plant named ‘HoldenRhodo213’UNDER PATENTDecember 27, 2041
- HoldenRhodo212PP34541Rhododendron plant named ‘HoldenRhodo212’UNDER PATENTDecember 27, 2041
- HoldenRhodo211PP34628Rhododendron plant named ‘HoldenRhodo211’UNDER PATENTDecember 27, 2041
- NCRX10PP35049Rhododendron plant ‘NCRX10’UNDER PATENTJune 21, 2042
- NCRX9PP35072Rhododendron plant ‘NCRX9’UNDER PATENTJune 21, 2042
- NCRX11PP35082Rhododendron plant named ‘NCRX11’UNDER PATENTJune 21, 2042
- LazamorwhiPP35147Azalea plant named ‘Lazamorwhi’UNDER PATENTAugust 25, 2042
- AZAARE01PP35920Rhododendron plant named ‘AZAARE01’UNDER PATENTJanuary 24, 2043
- AZAARE02PP35921Rhododendron plant named ‘AZAARE02’UNDER PATENTJanuary 24, 2043
- AZAARE03PP36091Rhododendron plant named ‘AZAARE03’UNDER PATENTJanuary 24, 2043
- HoldenRhodo221PP35416Rhododendron plant named ‘HoldenRhodo221’UNDER PATENTFebruary 9, 2043
- NCRX12PP36323Rhododendron plant named ‘NCRX12’UNDER PATENTJune 17, 2044
- ROBLEZOPP36693Rhododendron plant named ‘ROBLEZO’UNDER PATENTNovember 4, 2044
- ROBLEZNPP36758Rhododendron plant named ‘ROBLEZN’UNDER PATENTNovember 4, 2044
- ROBLEZGPP36875Rhododendron plant named ‘ROBLEZG’UNDER PATENTNovember 4, 2044
- ROBLEZPPP36883Rhododendron plant named ‘ROBLEZP’UNDER PATENTNovember 4, 2044
- NCB193PP36914Rhododendron plant named ‘NCB193’UNDER PATENTDecember 2, 2044
- NCB195PP36915Rhododendron plant named ‘NCB195’UNDER PATENTDecember 2, 2044
Already in the public domain — 128 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.
- PJM Pink DelightPP18328Rhododendron plant named ‘PJM Pink Delight’PUBLIC DOMAINJune 12, 2026
- MNIOCMPP17506Azalea plant named ‘MNIOCM’PUBLIC DOMAINDecember 24, 2025
- MNIJ92PP17331Azalea plant named ‘MNIJ92’PUBLIC DOMAINOctober 8, 2025
- MNIKRIPP17229Azalea plant named ‘MNIKRI’PUBLIC DOMAINAugust 27, 2025
- MNIELEPP17191Azalea plant named ‘MNIELE’PUBLIC DOMAINAugust 13, 2025
- MNIESMPP17192Azalea plant named ‘MNIESM’PUBLIC DOMAINAugust 13, 2025
- Azalea plant named MNISIRPP17193PUBLIC DOMAINAugust 13, 2025
- Spring PicoteePP16781Azalea plant named ‘Spring Picotee’PUBLIC DOMAINJune 7, 2025
- Spring FlingPP16782Azalea plant name ‘Spring Fling’PUBLIC DOMAINJune 7, 2025
- CarouselPP16783Azalea plant named ‘Carousel’PUBLIC DOMAINJune 7, 2025
- SonnetPP16784Azalea plant name ‘Sonnet’PUBLIC DOMAINJune 7, 2025
- Christine SienaPP16273Rhododendron plant named ‘Christine Siena’PUBLIC DOMAINJune 1, 2025
- Pink AngoraPP16609Azalea plant name ‘Pink Angora’PUBLIC DOMAINMay 10, 2025
- CarmenPP16839Rhododendron plant named ‘Carmen’PUBLIC DOMAINMay 5, 2025
- PearlsPP16593Azalea plant name ‘Pearls’PUBLIC DOMAINMay 3, 2025
- BittersweetPP16526Azalea plant name ‘Bittersweet’PUBLIC DOMAINApril 12, 2025
- YBAZ1812PP16499Azalea plant named ‘YBAZ1812’PUBLIC DOMAINApril 5, 2025
- Kinku SakuPP17177Rhododendron plant named ‘Kinku Saku’PUBLIC DOMAINMarch 5, 2025
- YBAZ1885PP16372Azalea plant named ‘YBAZ1885’PUBLIC DOMAINFebruary 22, 2025
- Christine BelliPP17166Rhododendron plant named ‘Christine Belli’PUBLIC DOMAINFebruary 14, 2025
- RoblelPP16278Azalea plant named ‘Roblel’PUBLIC DOMAINJanuary 1, 2025
- RoblenPP16248Azalea plant named ‘Roblen’PUBLIC DOMAINDecember 25, 2024
- RoblejaPP16249Azalea plant named ‘Robleja’PUBLIC DOMAINDecember 25, 2024
- RoblefPP16184Azalea plant named ‘Roblef’PUBLIC DOMAINNovember 13, 2024
- RobledPP15862Azalea plant named ‘Robled’PUBLIC DOMAINJuly 17, 2024
- Classic RougePP16338Rhododendron plant named ‘Classic Rouge’PUBLIC DOMAINJuly 5, 2024
- RoblecPP15339Azalea plant named ‘Roblec’PUBLIC DOMAINMarch 15, 2024
- RoblegPP15227Azalea plant named ‘Robleg’PUBLIC DOMAINJanuary 21, 2024
- RoblemPP15043Azalea plant named ‘Roblem’PUBLIC DOMAINDecember 31, 2023
- Christine MagicPP15096Azalea plant named ‘Christine Magic’PUBLIC DOMAINNovember 18, 2023
- Rhodunter 37PP15940Rhododendron rootstock named ‘Rhodunter 37’PUBLIC DOMAINOctober 11, 2022
- Rhodunter 48PP15967Rhododendron rootstock named ‘Rhodunter 48’PUBLIC DOMAINOctober 11, 2022
- Miss LuluPP14263Azalea plant named ‘Miss Lulu’PUBLIC DOMAINSeptember 29, 2022
- OspoPP14285Azalea plant named ‘Ospo’PUBLIC DOMAINSeptember 29, 2022
- RoblebPP13681Azalea plant named ‘Robleb’PUBLIC DOMAINMay 31, 2022
- VibrationPP13571Azalea plant named ‘Vibration’PUBLIC DOMAINMarch 15, 2022
- BlissPP13613Azalea plant named ‘Bliss’PUBLIC DOMAINDecember 28, 2021
- Crimson QueenPP14343Azalea plant named ‘Crimson Queen’PUBLIC DOMAINAugust 15, 2021
- Crimson PrincessPP14360Azalea plant named ‘Crimson Princess’PUBLIC DOMAINAugust 15, 2021
- Crimson MajestyPP14362Azalea plant named ‘Crimson Majesty’PUBLIC DOMAINAugust 15, 2021
- ScarletPP13073Azalea plant named ‘Scarlet’PUBLIC DOMAINAugust 10, 2021
- OrnamentPP12963Azalea plant named ‘Ornament’PUBLIC DOMAINJuly 10, 2021
- TimelessPP12871Azalea plant named ‘Timeless’PUBLIC DOMAINJune 25, 2021
- AngelinaPP12693Rhododendron plant named ‘Angelina’PUBLIC DOMAINFebruary 8, 2021
- Sweet SixteenPP12847Azalea plant named ‘Sweet Sixteen’PUBLIC DOMAINJuly 9, 2020
- AmuletPP12052Azalea plant named ‘Amulet’PUBLIC DOMAINJune 8, 2020
- HonestyPP12054Azalea plant named ‘Honesty’PUBLIC DOMAINJune 8, 2020
- Jewel BoxPP12056Azalea plant named ‘Jewel Box’PUBLIC DOMAINJune 8, 2020
- ConlesPP12109Azalea plant named ‘Conles’PUBLIC DOMAINMarch 27, 2020
- ConlerPP12110Azalea plant named ‘Conler’PUBLIC DOMAINMarch 27, 2020
- ConletPP12111Azalea plant named ‘Conlet’PUBLIC DOMAINMarch 27, 2020
- ConlepPP12133Azalea plant named ‘Conlep’PUBLIC DOMAINMarch 27, 2020
- RobleaPP12142Azalea plant named ‘Roblea’PUBLIC DOMAINMarch 27, 2020
- First PlacePP11913Azalea plant named ‘First Place’PUBLIC DOMAINFebruary 7, 2020
- PromisePP11920Azalea plant named ‘Promise’PUBLIC DOMAINFebruary 7, 2020
- Spring PromPP11923Azalea plant named ‘Spring Prom’PUBLIC DOMAINFebruary 7, 2020
- Christine MattonPP11693Azalea plant named `Christine Matton`PUBLIC DOMAINMarch 1, 2019
- JimRonFeyrerPP11616Azalea plant named `JimRonFeyrer`PUBLIC DOMAINOctober 26, 2018
- ConlenPP11628Azalea plant named `Conlen`PUBLIC DOMAINOctober 26, 2018
- ConleoPP11640Azalea plant named `Conleo`PUBLIC DOMAINOctober 26, 2018
- Amy CottaPP11311Rhododendron plant named `Amy Cotta`PUBLIC DOMAINJune 29, 2018
- Lavender LacePP11137Azalea plant named `Lavender Lace`PUBLIC DOMAINMay 20, 2018
- ParasolPP11152Azalea plant named `Parasol`PUBLIC DOMAINMay 20, 2018
- TapestryPP11155Azalea plant named `Tapestry`PUBLIC DOMAINMay 20, 2018
- Irish LacePP11187Azalea plant named `Irish Lace`PUBLIC DOMAINMay 20, 2018
- PanfiliaPP10891Azalea plant named `Panfilia`PUBLIC DOMAINSeptember 18, 2017
- SayonaraPP10792Azalea plant named `Sayonara`PUBLIC DOMAINSeptember 15, 2017
- WendyPP10791Azalea plant named `Wendy`PUBLIC DOMAINSeptember 4, 2017
- ConlelPP10687Azalea plant named `Conlel`PUBLIC DOMAINAugust 27, 2017
- ConlejPP10688Azalea plant named `Conlej`PUBLIC DOMAINAugust 27, 2017
- ConlemPP10689Azalea plant named `Conlem`PUBLIC DOMAINAugust 27, 2017
- ConleiPP10702Azalea plant named `Conlei`PUBLIC DOMAINAugust 27, 2017
- ConlekPP10703Azalea plant named `Conlek`PUBLIC DOMAINAugust 27, 2017
- ConlegPP10704Azalea plant named `Conleg`PUBLIC DOMAINAugust 27, 2017
- Sweet LorrainePP11481Azalea plant named `Sweet Lorraine`PUBLIC DOMAINAugust 8, 2017
- ConleePP10567Azalea hybrid variety named `Conlee`PUBLIC DOMAINApril 8, 2017
- ConledPP10568Azalea hybrid `Conled`PUBLIC DOMAINApril 8, 2017
- ConlefPP10579Azalea hybrid variety named `Conlef`PUBLIC DOMAINApril 8, 2017
- ConlecPP10580Azalea hybrid `Conlec`PUBLIC DOMAINApril 8, 2017
- ConlebPP10581Azalea hybrid variety named `Conleb`PUBLIC DOMAINApril 8, 2017
- MemoriesPP10414Azalea plant named MemoriesPUBLIC DOMAINFebruary 27, 2017
- Calvary's LovePP10467Azalea plant named `Calvary's Love`PUBLIC DOMAINFebruary 27, 2017
- OstalettPP10508Azalea plant named `Ostalett`PUBLIC DOMAINFebruary 19, 2017
- TheoPP10523Azalea plant named `Theo`PUBLIC DOMAINFebruary 19, 2017
- AquarellPP10318Azalea plant named `Aquarell`PUBLIC DOMAINJanuary 8, 2017
- Northern StarburstPP10388Rhododendron plant named `Northern Starburst`PUBLIC DOMAINOctober 16, 2016
- ConleaPP10438Azalea hybrid variety named `Conlea`PUBLIC DOMAINAugust 8, 2016
- KarmaPP10158Azalea plant named KarmaPUBLIC DOMAINMay 22, 2016
- KometPP10179Azalea plant named KometPUBLIC DOMAINMay 22, 2016
- MelodiePP10294Azalea plant named MelodiePUBLIC DOMAINMay 22, 2016
- KosmosPP10437Azalea plant named KosmosPUBLIC DOMAINMay 22, 2016
- Purple PassionPP9981Rhododendron plant named `Purple Passion`PUBLIC DOMAINMay 22, 2016
- Party FavorPP10050Azalea plant named `Party Favor`PUBLIC DOMAINApril 12, 2016
- GoddessPP10060Azalea plant named GoddessPUBLIC DOMAINApril 12, 2016
- MysticPP10061Azalea plant named MysticPUBLIC DOMAINJanuary 5, 2016
- CherishPP9910Azalea plant `Cherish`PUBLIC DOMAINJanuary 5, 2016
- SachetPP9911Azalea plant named SachetPUBLIC DOMAINJanuary 5, 2016
- BudsPP9654Azalea cv. Baby BudsPUBLIC DOMAINAugust 8, 2015
- Jean PanzerPP10370Azalea--`Jean Panzer`PUBLIC DOMAINMay 5, 2015
- AthenaPP9439Azalea plant named AthenaPUBLIC DOMAINJanuary 31, 2015
- SincerityPP9073Azalea plant named SincerityPUBLIC DOMAINApril 6, 2014
- ChampagnePP9131Azalea plant named ChampagnePUBLIC DOMAINApril 6, 2014
- YB 871 RemembrancePP9132Azalea plant named YB 871 RemembrancePUBLIC DOMAINApril 6, 2014
- Paul A. KohlPP9125Azalea hybrid plant `Paul A. Kohl`PUBLIC DOMAINMarch 18, 2014
- Al PanzerPP8536Azalea -- Al Panzer varietyPUBLIC DOMAINMay 6, 2012
- Billie DeePP7530Azalea hybrid `Billie Dee`PUBLIC DOMAINMay 16, 2009
- Rachel BandyPP7416Azalea hybrid `Rachel Bandy`PUBLIC DOMAINMay 15, 2009
- Jessica DawnPP7457Azalea hybrid `Jessica Dawn`PUBLIC DOMAINMay 12, 2009
- IrvsmartPP6898Rhododendron plane--Irvsmart varietyPUBLIC DOMAINApril 19, 2008
- Scented SpringtimePP6629Rhododendron plant `Scented Springtime`PUBLIC DOMAINOctober 16, 2007
- Variegated evergreen Azalea plantPP6961PUBLIC DOMAINJune 3, 2007
- CachetPP6412Azalea plant named CachetPUBLIC DOMAINFebruary 26, 2007
- ArdentPP6413Azalea plant named ArdentPUBLIC DOMAINFebruary 26, 2007
- BoleroPP6414Azalea plant named BoleroPUBLIC DOMAINFebruary 26, 2007
- IkonPP6607Azalea plant named IkonPUBLIC DOMAINFebruary 26, 2007
- LuciPP5913Azalea plant named LuciPUBLIC DOMAINFebruary 7, 2005
- CharlyPP5917Azalea plant named CharlyPUBLIC DOMAINFebruary 7, 2005
- SammetglutPP6026Rhododendron plant--Sammetglut varietyPUBLIC DOMAINSeptember 29, 2004
- Nancy MariePP5389Azalea named Nancy MariePUBLIC DOMAINJune 16, 2003
- GoldilocksPP5149Rhododendron plant `Goldilocks`PUBLIC DOMAINMarch 22, 2002
- Southern BellePP4929Azalea plant named Southern BellePUBLIC DOMAINDecember 15, 2000
- HacputPP4905Rhododendron plant--Hacput varietyPUBLIC DOMAINJune 25, 2000
- DJOPP4688Azalea plantPUBLIC DOMAINFebruary 19, 2000
- Azalea plantPP4749PUBLIC DOMAINFebruary 11, 2000
- Evergreen azaleaPP4718PUBLIC DOMAINNovember 21, 1999
- Azalea plantPP4535PUBLIC DOMAINFebruary 21, 1999
- Variegated DogwoodPP4455Azalea named Variegated DogwoodPUBLIC DOMAINJune 5, 1998
- Cotton CandyPP4112Azalea plant named Cotton CandyPUBLIC DOMAINSeptember 27, 1994
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.