US Plant Patent PP19950
Miss Ruby
Buddleja plant named ‘Miss Ruby’
UNDER PATENT
Still under patent. Protection ends October 31, 2027.
Twenty years from the filing date would end on August 23, 2027. This patent earned 69 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP19950
- Filed
- August 23, 2007
- Granted
- April 21, 2009
- Expires
- October 31, 2027
- Assignee
- UNIV NORTH CAROLINA STATE
- Inventor
- WERNER DENNIS JAMES; SNELLING LAYNE KARLTON
Abstract
Buddleja ‘Miss Ruby’ is a new and distinct variety of butterfly bush that has the following unique combination of desirable features that are outstanding in a new variety. 1. Moderate vigor resulting in compact growth habit. 2. Ease of asexual propagation using softwood or semi-hardwood cuttings. 3. Upright growth habit with flowers borne stiffly on upright shoots. 4. Low female fertility and reduced seed set, resulting in less opportunity for seedlings to originate in the landscape setting. 5. Bright pink flower color, unknown in any other butterfly bush variety known to the inventor.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of butterfly bush ( Buddleja ) substantially as illustrated and described, characterized by its compact growth habit, grayed-green leaf color, and bright pink flower color.
Read the full patent: US Plant Patent PP19950 in full — the complete specification, every figure, and the file history.