Plant
Calla lily
21 US plant patents name this plant. 6 have expired, so those cultivars are free to propagate and sell. The next of the 15 still protected comes off patent on December 21, 2031.
Still under patent — 15 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- PacoPP24246Variety of calla lily named ‘Paco’UNDER PATENTDecember 21, 2031
- AspenPP24245Variety of calla lily named ‘Aspen’UNDER PATENTDecember 27, 2031
- CalgaryPP24275Variety of calla lily named ‘Calgary’UNDER PATENTDecember 27, 2031
- HalifaxPP28165Variety of calla lily plant named ‘Halifax’UNDER PATENTDecember 17, 2035
- NashvillePP28148Variety of calla lily plant named ‘Nashville’UNDER PATENTDecember 23, 2035
- ZazuPP28164Variety of calla lily plant named ‘Zazu’UNDER PATENTDecember 23, 2035
- FangioPP28196Variety of calla lily plant named ‘Fangio’UNDER PATENTDecember 23, 2035
- VermontPP28146Variety of calla lily plant named ‘Vermont’UNDER PATENTDecember 30, 2035
- FireworksPP28147Variety of calla lily plant named ‘Fireworks’UNDER PATENTDecember 30, 2035
- DenverPP28267Variety of calla lily plant named ‘Denver’UNDER PATENTDecember 30, 2035
- FursaPP29119Variety of calla lily plant named ‘Fursa’UNDER PATENTJanuary 24, 2036
- MontevideoPP28870Variety of calla lily plant named ‘Montevideo’UNDER PATENTMarch 5, 2036
- Black HeroPP28871Variety of calla lily plant named ‘Black Hero’UNDER PATENTMarch 5, 2036
- HavanaPP28872Variety of calla lily plant named ‘Havana’UNDER PATENTMarch 5, 2036
- HelvetiaPP28873Variety of calla lily plant named ‘Helvetia’UNDER PATENTMarch 5, 2036
Already in the public domain — 6 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.
- Majestic StarPP18110Variety of calla lily named ‘Majestic Star’PUBLIC DOMAINApril 16, 2026
- HawaiiPP15642Variety of calla lily named ‘Hawaii’PUBLIC DOMAINApril 25, 2023
- Swan LakePP15664Variety of calla lily named ‘Swan Lake’PUBLIC DOMAINApril 25, 2023
- Red SoxPP14063Variety of calla lily named ‘Red Sox’PUBLIC DOMAINJuly 8, 2021
- Purple HazePP13393Variety of calla lily plant named ‘Purple Haze’PUBLIC DOMAINJanuary 31, 2020
- SchwarzwalderPP11001Variety of calla lily plant named `Schwarzwalder`PUBLIC DOMAINAugust 22, 2017
Botanically this is Zantedeschia. 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.