US Plant Patent PP20025
Carlton
Weigela plant named ‘Carlton’
UNDER PATENT
Still under patent. Protection ends March 11, 2028.
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
- PP20025
- Filed
- March 11, 2008
- Granted
- May 26, 2009
- Expires
- March 11, 2028
- Assignee
- SPRING MEADOW NURSERY INC
- Inventor
- WOOD TIMOTHY D
Abstract
A new and distinct cultivar of Weigela plant named ‘Carlton’, characterized by its uniform plant habit; freely branching habit; developing leaves that are yellow green in color and fully expanded leaves that become yellow green in color during the mid-summer through autumn; dark red purple-colored flowers; 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 Weigela plant named ‘Carlton’ as illustrated and described.
Read the full patent: US Plant Patent PP20025 in full — the complete specification, every figure, and the file history.