US Plant Patent PP12706
Piper Mitchell
Hemerocallis plant named ‘Piper Mitchell’
PUBLIC DOMAIN
Patent expired September 8, 2020. 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
- PP12706
- Filed
- September 8, 2000
- Granted
- June 18, 2002
- Expires
- September 8, 2020
- Assignee
- TWYFORD PLANT LAB INC
- Inventor
- KASKEL MATHEW
Abstract
A new cultivar of Hemerocallis plant named ‘Piper Mitchell’ characterized by its large yellow flowers tinged with orange which are borne on short branched scapes. The flowers do not fade in warm, bright conditions and are resistant to water spotting. Plants of ‘Piper Mitchell’ bloom very early in the season, and then repeatedly through out the growing season. Plants of ‘Piper Mitchell’ are evergreen, thus they are attractive in landscapes. The plant grows vigorously, and propagates easily by division or tissue culture.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. A new and distinct cultivar of Hemerocallis plant named ‘Piper Mitchell’ as
Read the full patent: US Plant Patent PP12706 in full — the complete specification, every figure, and the file history.