Plant
Physostegia
3 US plant patents name this plant. 1 has expired, so that cultivar is free to propagate and sell. The next of the 2 still protected comes off patent on November 9, 2031.
Still under patent — 2 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Pink MannersPP23482Physostegia plant named ‘Pink Manners’UNDER PATENTNovember 9, 2031
- NicaucaPP29859Physostegia plant named ‘Nicauca’UNDER PATENTJune 19, 2037
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.
- Miss MannersPP12637Physostegia plant named ‘Miss Manners’PUBLIC DOMAINJune 27, 2020
Botanically this is Physostegia. 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.