Plant
Ligularia
10 US plant patents name this plant. 3 have expired, so those cultivars are free to propagate and sell. The next of the 7 still protected comes off patent on September 25, 2027.
Still under patent — 7 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Osiris FantaisiePP19302Ligularia plant named ‘Osiris Fantaisie’UNDER PATENTSeptember 25, 2027
- Last DancePP20947Ligularia plant named ‘Last Dance’UNDER PATENTDecember 3, 2028
- Osiris Cafe NoirPP21351Ligularia plant named ‘Osiris Cafe Noir’UNDER PATENTSeptember 16, 2029
- Bottle RocketPP24486Ligularia plant named ‘Bottle Rocket’UNDER PATENTAugust 3, 2032
- King KongPP29461Ligularia plant named ‘King Kong’UNDER PATENTSeptember 12, 2036
- Little Golden RayPP31911Ligularia plant named ‘Little Golden Ray’UNDER PATENTApril 25, 2039
- Big Green TractorPP35810Ligularia plant named ‘Big Green Tractor’UNDER PATENTApril 26, 2043
Already in the public domain — 3 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.
- LaternchenPP16026Ligularia plant named ‘Laternchen’PUBLIC DOMAINSeptember 24, 2024
- Britt-Marie CrawfordPP16113Ligularia plant named ‘Britt-Marie Crawford’PUBLIC DOMAINOctober 16, 2023
- Little RocketPP14621Ligularia plant named ‘Little Rocket’PUBLIC DOMAINMay 13, 2023
Botanically this is Ligularia. 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.