US Plant Patent PP24573
Sweet Tart
Heuchera plant named ‘Sweet Tart’
UNDER PATENT
Still under patent. Protection ends December 29, 2032.
Twenty years from the filing date would end on August 10, 2032. This patent earned 141 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP24573
- Filed
- August 10, 2012
- Granted
- June 24, 2014
- Expires
- December 29, 2032
- Assignee
- TERRA NOVA NURSERIES INC, EGGER JANET N
- Inventor
- EGGER JANET N
Abstract
A new and distinct Heuchera plant characterized by small yellow spring leaves that mature to lime green, winter leaves of olive green with red veins, bright pink in wands, very free flowering on short, dark flower stalks, a small, multi-crowned, low mounding habit, and excellent vigor.
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 Heuchera plant as herein illustrated and described.
Read the full patent: US Plant Patent PP24573 in full — the complete specification, every figure, and the file history.