Plant
Boxwood
11 US plant patents name this plant. 4 have expired, so those cultivars are free to propagate and sell. The next of the 7 still protected comes off patent on September 18, 2027.
Still under patent — 7 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Thomas JeffersonPP23869Boxwood plant named ‘Thomas Jefferson’UNDER PATENTSeptember 18, 2027
- ConrowePP19924Boxwood plant named ‘Conrowe’UNDER PATENTNovember 19, 2027
- HighlanderPP22978Boxwood plant named ‘Highlander’UNDER PATENTJune 24, 2031
- Little MissyPP24703Boxwood plant named ‘Little Missy’UNDER PATENTDecember 1, 2032
- BSPSNPP35298Boxwood plant named ‘BSPSN’UNDER PATENTJuly 15, 2042
- Clair OliverPP35864Boxwood plant named ‘Clair Oliver’UNDER PATENTMay 12, 2043
- TM108PP36668Boxwood plant named ‘TM108’UNDER PATENTJune 20, 2044
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.
- Arctic EmeraldPP18289Boxwood cultivar named ‘Arctic Emerald’PUBLIC DOMAINJuly 15, 2025
- PolarPP17085Boxwood plant named ‘Polar’PUBLIC DOMAINApril 25, 2025
- Wee WilliePP17007Boxwood plant named ‘Wee Willie’PUBLIC DOMAINMay 20, 2024
- Green IcePP10773Boxwood plant named `Green Ice`PUBLIC DOMAINNovember 3, 2017
Botanically this is Buxus. 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.