Breeder
CLIFFORD JOHN K
6 US plant patents, granted between 2006 and 2012.
Filed under the CLIFFORD name. Related entities are listed separately on the CLIFFORD search, because a company and a person are not the same filer even when the name matches.
Still under patent — 3 cultivars
Soonest to come off patent first. You may not propagate these for sale until the date shown.
- Red RomancePP19249Dianthus plant named ‘Red Romance’UNDER PATENTOctober 17, 2027
- HopePP22461Dianthus plant named ‘Hope’UNDER PATENTNovember 9, 2030
- FaithPP22513Dianthus plant named ‘Faith’UNDER PATENTFebruary 17, 2031
Already in the public domain — 3 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.
- Forest FirePP17644Hosta plant named ‘Forest Fire’PUBLIC DOMAINOctober 13, 2025
- JawsPP17322Sedum plant named ‘Jaws’PUBLIC DOMAINSeptember 23, 2025
- Clifford's StingrayPP17279Hosta plant named ‘Clifford's Stingray’PUBLIC DOMAINSeptember 22, 2025