US Plant Patent PP16593
Pearls
Azalea plant name ‘Pearls’
PUBLIC DOMAIN
Patent expired May 3, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on February 1, 2025. This patent earned 91 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16593
- Filed
- February 1, 2005
- Granted
- May 30, 2006
- Expires
- May 3, 2025
- Assignee
- YODER BROTHERS INC
- Inventor
- BERGMAN WENDY R
Abstract
A new and distinct cultivar of Azalea plant named ‘Pearls’, characterized by its dark green-colored leaves that do not abscise during the cooling and forcing periods; uniform and outwardly spreading plant habit; freely branching habit; uniform and freely flowering habit; rapid flowering response; plants begin flowering about 24 days after cooling treatment; large and ruffled white-colored flowers with greenish centers; double hose-in-hose flower form; excellent postproduction longevity with plants maintaining good flower substance for about five weeks in an interior environment; and very good resistance to Cylindrocladium in inoculated trials.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Azalea plant named ‘Pearls’, as illustrated and described.
Read the full patent: US Plant Patent PP16593 in full — the complete specification, every figure, and the file history.