Genus
Alternanthera
8 US plant patents have been granted in this genus. 4 are already in the public domain — anyone may propagate and sell them. The next of the 4 still protected comes off patent on August 2, 2027.
Still under patent — 4 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Brazilian RedPP19936Alternanthera plant named ‘Brazilian Red’UNDER PATENTAugust 2, 2027
- Mai TaiPP20263Alternanthera plant named ‘Mai Tai’UNDER PATENTJune 30, 2028
- Raspberry RumPP21016Alternanthera plant named ‘Raspberry Rum’UNDER PATENTJanuary 23, 2029
- MimosaPP23451Alternanthera plant named ‘Mimosa’UNDER PATENTApril 7, 2032
Already in the public domain — 4 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.
- GrenadinePP16442Alternanthera plant named ‘Grenadine’PUBLIC DOMAINApril 6, 2025
- CognacPP16411Alternanthera plant named ‘Cognac’PUBLIC DOMAINMarch 27, 2025
- Creme de MenthePP16263Alternanthera plant named ‘Creme de Menthe’PUBLIC DOMAINFebruary 9, 2025
- PartytimePP14789Alternanthera plant named ‘Partytime’PUBLIC DOMAINDecember 6, 2022
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.