Plant
Callistemon
14 US plant patents name this plant. 2 have expired, so those cultivars are free to propagate and sell. The next of the 12 still protected comes off patent on August 23, 2032.
Still under patent — 12 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- CV01PP24444Callistemon viminalis plant named ‘CV01’UNDER PATENTAugust 23, 2032
- LC01PP25011Callistemon viminalis plant named ‘LC01’UNDER PATENTMarch 22, 2033
- CC19PP25023Callistemon viminalis plant named ‘CC19’UNDER PATENTApril 24, 2033
- KPS38PP25673Callistemon viminalis plant named ‘KPS38’UNDER PATENTOctober 31, 2033
- LJ1PP27331Callistemon viminalis plant named ‘LJ1’UNDER PATENTOctober 4, 2034
- LJ23PP27547Callistemon viminalis plant named ‘LJ23’UNDER PATENTNovember 13, 2034
- CALKWRPP33724Callistemon plant named ‘CALKWR’UNDER PATENTNovember 19, 2040
- CNU06PP34778Callistemon plant named ‘CNU06’UNDER PATENTMarch 21, 2042
- CNU19PP34796Callistemon plant named ‘CNU19’UNDER PATENTMarch 21, 2042
- CNU07PP34797Callistemon plant named ‘CNU07’UNDER PATENTMarch 21, 2042
- CNU15PP34820Callistemon plant named ‘CNU15’UNDER PATENTMarch 21, 2042
- CNU01PP34739Callistemon plant named ‘CNU01’UNDER PATENTMarch 24, 2042
Already in the public domain — 2 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.
- Matthew FlindersPP17314Callistemon plant named ‘Matthew Flinders’PUBLIC DOMAINSeptember 24, 2025
- BoyettePP5072Callistemon `Boyette`PUBLIC DOMAINNovember 24, 2001
Botanically this is Callistemon. 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.