US Plant Patent PP21618
Boreas
Hibiscus plant named ‘Boreas’
UNDER PATENT
Still under patent. Protection ends October 16, 2029.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP21618
- Filed
- October 16, 2009
- Granted
- January 11, 2011
- Expires
- October 16, 2029
- Assignee
- GRAFF BREEDING AS
- Inventor
- GRAFF POUL
Abstract
A new and distinct cultivar of Hibiscus plant named ‘Boreas’, characterized by its upright, somewhat, outwardly spreading and dense and bushy plant habit; glossy dark green-colored leaves; uniform and freely flowering habit; large pale yellow-colored flowers with dark red-colored centers; and good flower longevity.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Hibiscus plant named ‘Boreas’ as illustrated and described.
Read the full patent: US Plant Patent PP21618 in full — the complete specification, every figure, and the file history.