US Plant Patent PP16451
Heart and Soul
Astilbe plant named ‘Heart and Soul’
PUBLIC DOMAIN
Patent expired May 21, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on March 5, 2025. This patent earned 77 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP16451
- Filed
- March 5, 2005
- Granted
- April 18, 2006
- Expires
- May 21, 2025
- Assignee
- WITTEMAN & CO
- Inventor
- VERDUIN HENRICUS GIJSBERTUS JO
Abstract
A new and distinct cultivar of Astilbe plant named ‘Heart and Soul’, characterized by its upright, mounded and compact plant habit; rapid growth rate; freely and uniform flowering habit; and light purple-colored flowers.
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 Astilbe plant named ‘Heart and Soul’, as illustrated and described.
Read the full patent: US Plant Patent PP16451 in full — the complete specification, every figure, and the file history.