Genus
Oxalis
5 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 1 still protected comes off patent on March 7, 2031.
Still under patent — 1 cultivar
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- JroxachvelPP23063Oxalis plant named ‘Jroxachvel’UNDER PATENTMarch 7, 2031
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.
- JroxblavelPP17556Oxalis plant named ‘Jroxblavel’PUBLIC DOMAINSeptember 27, 2025
- JroxburwiPP17557Oxalis plant named ‘Jroxburwi’PUBLIC DOMAINSeptember 27, 2025
- JroxfrojaPP17558Oxalis plant named ‘Jroxfroja’PUBLIC DOMAINSeptember 27, 2025
- AmaranthaPP13971Oxalis plant named ‘Amarantha’PUBLIC DOMAINMay 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.