US Plant Patent PP20446
Summer Rose
Caladium plant named ‘Summer Rose’
UNDER PATENT
Still under patent. Protection ends May 30, 2028.
Twenty years from the filing date would end on May 12, 2028. This patent earned 18 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP20446
- Filed
- May 12, 2008
- Granted
- November 3, 2009
- Expires
- May 30, 2028
- Assignee
- FLORIDA FOUND SEED PRODUCERS INC
- Inventor
- DENG ZHANAO; HARBAUGH BRENT
Abstract
A distinct cultivar of Caladium plant named ‘Summer Rose’, characterized by its very large heart shaped leaves, bright rose color, and demonstrated potential to produce large plants with huge leaves when grown in outdoor landscapes and attractive plants when forced in pots.
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 Caladium plant named ‘Summer Rose’, as illustated and described.
Read the full patent: US Plant Patent PP20446 in full — the complete specification, every figure, and the file history.