US Plant Patent PP18741
Yotwist
Aster plant named ‘Yotwist’
PUBLIC DOMAIN
Patent expired June 22, 2026. 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
- PP18741
- Filed
- June 22, 2006
- Granted
- April 22, 2008
- Expires
- June 22, 2026
- Assignee
- YODER BROTHERS INC
- Inventor
- SMITH MARK A
Abstract
A new and distinct cultivar of Aster plant named ‘Yotwist’, characterized by its uniform, outwardly spreading and mounded plant habit; freely branching growth habit; dark green-colored foliage; uniform flowering habit; natural flowering season mid-September in the Northern Hemisphere; daisy-type inflorescences with light violet-colored ray florets; and good garden performance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct Aster plant named ‘Yotwist’ as illustrated and described.
Read the full patent: US Plant Patent PP18741 in full — the complete specification, every figure, and the file history.