US Plant Patent PP30235
HOLDEN52
Rhododendron plant named ‘HOLDEN52’
UNDER PATENT
Still under patent. Protection ends September 19, 2037.
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
- PP30235
- Filed
- September 19, 2017
- Granted
- February 26, 2019
- Expires
- September 19, 2037
- Assignee
- PLANT DEV SERVICES INC, KREBS STEPHEN
- Inventor
- KREBS STEPHEN
Abstract
A new and distinct Rhododendron cultivar named ‘HOLDEN52’ is disclosed, characterized by colorful rose-pink flowers with definite white and light pink patterning. Plants are heat tolerant to USDA zone 9 and cold hardy to Zone 5. Resistance to Phytophthora root rot has been observed. Plants have a dense, mounded habit and dark green, glossy mature foliage. The new cultivar is a Rhododendron , suitable for ornamental garden purposes.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct cultivar of Rhododendron plant named ‘HOLDEN52’ as herein illustrated and described.
Read the full patent: US Plant Patent PP30235 in full — the complete specification, every figure, and the file history.