US Plant Patent PP20411
Red Knee High
Echinacea plant named ‘Red Knee High’
UNDER PATENT
Still under patent. Protection ends October 1, 2028.
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
- PP20411
- Filed
- October 1, 2008
- Granted
- October 13, 2009
- Expires
- October 1, 2028
- Assignee
- SUNNY BORDER NURSERIES INC
- Inventor
- LAVIANA MARC R
Abstract
A new cultivar of hybrid Echinacea , ‘Red Knee High’, characterized by its compact and dwarf growth habit, its sturdy stems, its inflorescences with ray florets that emerge bright red-purple surrounding golden yellow cones and fade to pink as they mature, its continuous bloom from mid summer through fall, its ease of propagation, its vigorous growth habit, and its hardiness in U.S.D.A. Zones 3 to 8.
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 Echinacea plant named ‘Red Knee High’ substantially as herein illustrated and described.
Read the full patent: US Plant Patent PP20411 in full — the complete specification, every figure, and the file history.