US Plant Patent PP35553
GRHP12
Hydrangea plant named ‘GRHP12’
UNDER PATENT
Still under patent. Protection ends January 17, 2043.
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
- PP35553
- Filed
- January 17, 2023
- Granted
- December 19, 2023
- Expires
- January 17, 2043
- Assignee
- ROUWETTE GUIDO
- Inventor
- ROUWETTE GUIDO
Abstract
A new cultivar of Hydrangea paniculata plant named ‘GRHP12’ that is characterized by its flower panicles that change in color from lime green and white to green and pink to dark cherry pink as they mature, its well-branched plant habit with sturdy stems, its floriferous blooming habit, its dense and sturdy flower panicles, and its large flower panicles with rounded, large sepals.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct cultivar of Hydrangea plant named ‘GRHP12’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP35553 in full — the complete specification, every figure, and the file history.