Genus
Schizachyrium
13 US plant patents have been granted in this genus. 1 is already in the public domain — anyone may propagate and sell it. The next of the 12 still protected comes off patent on January 13, 2029.
Still under patent — 12 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- CarouselPP20948Schizachyrium plant named ‘Carousel’UNDER PATENTJanuary 13, 2029
- Standing OvationPP25202Schizachyrium plant named ‘Standing Ovation’UNDER PATENTOctober 31, 2032
- Prairie MunchkinPP26335Schizachyrium plant named ‘Prairie Munchkin’UNDER PATENTApril 10, 2034
- Twilight ZonePP27432Schizachyrium plant named ‘Twilight Zone’UNDER PATENTApril 19, 2035
- Smoke SignalPP27433Schizachyrium plant named ‘Smoke Signal’UNDER PATENTApril 22, 2035
- Blue ParadisePP28145Schizachyrium plant named ‘Blue Paradise’UNDER PATENTMay 12, 2036
- ChameleonPP31339Schizachyrium plant named ‘Chameleon’UNDER PATENTOctober 24, 2038
- Ha Ha TonkaPP32374Schizachyrium plant named ‘Ha Ha Tonka’UNDER PATENTJanuary 13, 2040
- ECGSSPP33433Schizachyrium plant named ‘ECGSS’UNDER PATENTDecember 13, 2040
- Brush StrokesPP36206Schizachyrium plant named ‘Brush Strokes’UNDER PATENTNovember 7, 2043
- Little Red FoxPP36738Schizachyrium grass named ‘Little Red Fox’UNDER PATENTMarch 7, 2044
- SandhillPP36359Schizachyrium scoparium plant named ‘Sandhill’UNDER PATENTMarch 26, 2044
Already in the public domain — 1 cultivar
Most recently freed first. Anyone may propagate and sell this plant — though the name it is sold under may still be a live trademark.
- MinnblueAPP17310Schizachyrium plant named ‘MinnblueA’PUBLIC DOMAINMay 2, 2025
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.