Plant
Solidago
14 US plant patents name this plant. 10 have expired, so those cultivars are free to propagate and sell. The next of the 4 still protected comes off patent on December 20, 2027.
Still under patent — 4 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- KLESH06001PP19861Solidago plant named ‘KLESH06001’UNDER PATENTDecember 20, 2027
- KLESH13014PP25430Solidago plant named ‘KLESH13014’UNDER PATENTNovember 7, 2033
- BARSOLMAGPP29086Solidago plant named ‘BARSOLMAG’UNDER PATENTOctober 22, 2036
- Sugar KissesPP34747Solidago plant named ‘Sugar Kisses’UNDER PATENTFebruary 22, 2042
Already in the public domain — 10 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.
- DansolitlemPP17297Solidago plant named ‘Dansolitlem’PUBLIC DOMAINAugust 17, 2025
- Dansol21PP17148Solidago plant named ‘Dansol21’PUBLIC DOMAINAugust 12, 2025
- DansolwindPP17076Solidago plant named ‘Dansolwind’PUBLIC DOMAINMarch 2, 2025
- SolbutPP16003Solidago plant named ‘Solbut’PUBLIC DOMAINSeptember 27, 2024
- PlutonPP15913Solidago plant named ‘Pluton’PUBLIC DOMAINSeptember 10, 2024
- BareightPP12525Solidago plant named ‘Bareight’PUBLIC DOMAINSeptember 5, 2020
- DansosoloPP12137Solidago plant named ‘Dansosolo’PUBLIC DOMAINJune 1, 2019
- DansolgoldPP12170Solidago plant named ‘Dansolgold’PUBLIC DOMAINJune 1, 2019
- BarsevenPP11316Solidago plant named `Barseven`PUBLIC DOMAINSeptember 3, 2018
- Yellow SubmarinePP8710Solidago plant named Yellow SubmarinePUBLIC DOMAINJuly 6, 2013
Botanically this is Solidago. A patent expiring frees the plant, and its cultivar name with it — cultivar names cannot be trademarked. Any brand name it is sold under is a separate thing and may still be owned.