Genus
Digitalis
14 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 13 still protected comes off patent on January 23, 2029.
Still under patent — 13 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- WALDIGONEPP20937Digitalis plant named ‘WALDIGONE’UNDER PATENTJanuary 23, 2029
- Wedding BellsPP22578Digitalis plant named ‘Wedding Bells’UNDER PATENTAugust 31, 2030
- DG 09/4PP25442Digitalis plant named ‘DG 09/4’UNDER PATENTSeptember 26, 2033
- TakforuglPP25640Digitalis plant named ‘Takforugl’UNDER PATENTFebruary 5, 2034
- TakforoivPP26554Digitalis plant named ‘Takforoiv’UNDER PATENTNovember 14, 2034
- TakfoplgoPP26586Digitalis plant named ‘Takfoplgo’UNDER PATENTNovember 20, 2034
- Berry CanaryPP27607Digitalis hybrid plant named ‘Berry Canary’UNDER PATENTMay 9, 2035
- FirebirdPP31840Digitalis ‘Firebird’UNDER PATENTJune 19, 2039
- BalroxosePP31900Digitalis plant named ‘Balroxose’UNDER PATENTSeptember 16, 2039
- ISOB007PP32442Digitalis plant named ‘ISOB007’UNDER PATENTJanuary 10, 2040
- FirecrackerPP32975Digitalis hybrid plant named ‘Firecracker’UNDER PATENTJuly 14, 2040
- FlamingoPP33763Digitalis hybrid plant named ‘Flamingo’UNDER PATENTJune 29, 2041
- Rising PhoenixPP33764Digitalis hybrid plant named ‘Rising Phoenix’UNDER PATENTJune 29, 2041
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.
- Spice IslandPP17849Digitalis plant named ‘Spice Island’PUBLIC DOMAINDecember 1, 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.