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US Plant Patent PP18454

DRG04

Dianella revoluta plant named ‘DRG04’

PUBLIC DOMAIN

Patent expired September 29, 2025. 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.

Figure 1 of US plant patent PP18454, the photograph of DRG04 printed in the patent.
Figure 1 from US Plant Patent PP18454, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number
PP18454
Filed
September 29, 2005
Granted
January 22, 2008
Expires
September 29, 2025
Assignee
VERSASCAPES L L C
Inventor
LAYT TODD ANTHONY

Abstract

‘DRG04’ is a distinctive variety of Dianella revoluta, which is characterized by the combination of a dense compact clumping habit with red basal shoots and a slight weeping of clumps with age. ‘DRG04’ is further characterized by its glaucous leaves, which result in a two-toned leaf color when viewed from a distance, with a glossy green upper side leaf color and a dull green (slightly blue-toned) lower side leaf color. When observed up-close the leaves are a yellow-green. ‘DRG04’ is also distinguished by the ability to be easily and productively propagated by division.

Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.

1. A new and distinct variety of Dianella revoluta plant named ‘DRG04’, substantially as described and illustrated herein.

Read the full patent: US Plant Patent PP18454 in full — the complete specification, every figure, and the file history.