Genus
Mahonia
9 US plant patents have been granted in this genus. 0 are already in the public domain — anyone may propagate and sell them. The next of the 9 still protected comes off patent on September 27, 2026.
Still under patent — 9 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Soft CaressPP20183Mahonia plant named ‘Soft Caress’UNDER PATENTSeptember 27, 2026
- CabaretPP21572Mahonia plant named ‘Cabaret’UNDER PATENTJanuary 5, 2030
- MarvelPP27425Mahonia hybrid plant named ‘Marvel’UNDER PATENTJune 24, 2035
- MONRWSPP28549Mahonia plant named ‘MONRWS’UNDER PATENTDecember 7, 2035
- sPg-15-1PP29095Mahonia plant named ‘sPg-15-1’UNDER PATENTFebruary 12, 2036
- NCMH1PP34442Mahonia plant named ‘NCMH1’UNDER PATENTOctober 14, 2041
- NCMH2PP34443Mahonia plant named ‘NCMH2’UNDER PATENTOctober 14, 2041
- ALT 2PP36433Mahonia plant named ‘ALT 2’UNDER PATENTApril 25, 2044
- HILLMAHPP36843Mahonia plant named ‘HILLMAH’UNDER PATENTNovember 6, 2044
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.