US Plant Patent PP16669
Cherub
Hibiscus plant named: ‘Cherub’
PUBLIC DOMAIN
Patent expired July 30, 2022. This plant is in the public domain — anyone may propagate and sell it.
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
- PP16669
- Filed
- July 30, 2002
- Granted
- June 20, 2006
- Expires
- July 30, 2022
- Assignee
- ZWETZIG GRETCHEN
- Inventor
- ZWETZIG GRETCHEN
Abstract
A new and distinct cultivar of winter hardy hibiscus plant named ‘Cherub’ is the result of a unique hybridization. This new and distinct cultivar is characterized primarily as to novelty by its tropical aspects, its extreme cold hardiness to Zone 4, its medium-sized, thick-textured, tubular pink flowers with recurved petal edges and its shiny Maple-like green leaves and unusual pyramidal compactness of about 3 feet, its vigorous and uniform growth habit, and its floriferous nature from midsummer until frost, and its genetic achievement as a cross between a tropical and hardy Hibiscus.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct cultivar of TROPICAL-HARDY™ Hibiscus plant, as herein shown and described, characterized by its tropical aspect, extremely compact, pyramidal nature, its shiny and very refined green, Maple-like foliage, its pale pink tubular flowers with recurved petal edges, its vigor, and its hardiness.
Read the full patent: US Plant Patent PP16669 in full — the complete specification, every figure, and the file history.