US Plant Patent PP35191
Copper King
Heucherella plant named ‘Copper King’
UNDER PATENT
Still under patent. Protection ends November 22, 2042.
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
- PP35191
- Filed
- November 22, 2022
- Granted
- May 23, 2023
- Expires
- November 22, 2042
- Assignee
- WALTERS GARDENS INC, HANSEN HANS A
- Inventor
- HANSEN HANS A
Abstract
The new hybrid X Heucherella plant named ‘Copper King’ with slightly-cupped leaves at the petiole and flat margins, deeply incised into five to seven main lobes with each individual lobes irregularly incised. Foliage color starts in the spring as bright orange with reddish-copper in surrounding the veins, and the edges develop a yellowish-chartreuse and matures in the late fall to a medium-green with a mahogany pattern around the veins. ‘Copper King’ is vigorous and produces many airy panicles with numerous sterile creamy-white flowers in densely branched panicles beginning late spring and exhibits good heat and humidity tolerance. The plant is useful for landscaping as a specimen color, en masse, or as a container plant.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. The new and distinct ornamental plant named x Heucherella ‘Copper King’ as herein described and illustrated.
Read the full patent: US Plant Patent PP35191 in full — the complete specification, every figure, and the file history.