Genus
Stachys
8 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 7 still protected comes off patent on September 25, 2029.
Still under patent — 7 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Pink Cotton CandyPP21436Stachys plant named ‘Pink Cotton Candy’UNDER PATENTSeptember 25, 2029
- BareightyfourPP26736Stachys plant named “Bareightyfour”UNDER PATENTOctober 9, 2034
- Summer CrushPP29899Stachys plant named ‘Summer Crush’UNDER PATENTDecember 20, 2036
- Summer RomancePP30243Stachys plant named ‘Summer Romance’UNDER PATENTDecember 30, 2036
- Summer SweetsPP32169Stachys plant named ‘Summer Sweets’UNDER PATENTAugust 23, 2039
- BalstaclambPP35738Stachys plant named ‘Balstaclamb’UNDER PATENTSeptember 14, 2043
- KEY LIMEPP36792Stachys plant named ‘KEY LIME’UNDER PATENTNovember 4, 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.
- NPN 001PP17859Stachys plant named ‘NPN 001’PUBLIC DOMAINDecember 12, 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.