US Plant Patent PP28445
Denim 'n Lace
Perovskia plant named ‘Denim 'n Lace’
UNDER PATENT
Still under patent. Protection ends March 24, 2036.
Twenty years from the filing date would end on March 10, 2036. This patent earned 14 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP28445
- Filed
- March 10, 2016
- Granted
- September 26, 2017
- Expires
- March 24, 2036
- Assignee
- WALTERS GARDENS INC, HURD KEVIN A
- Inventor
- HURD KEVIN A
Abstract
The new and distinct cultivar of ornamental, hardy, Russian Sage plant, Perovskia ‘Denim 'n Lace’ with short, tight compact, upright habit of strong erect stems, long flowering season of large, densely-arranged, lavender-blue flowers on short branched stems. Foliage is silvery-green, highly-dissected, pinnately-compound with serrated margins and is retained well and keeps its color throughout the growing season.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct cultivar of hardy Russian sage plant, Perovskia ‘Denim 'n Lace’ as herein described and illustrated.
Read the full patent: US Plant Patent PP28445 in full — the complete specification, every figure, and the file history.