US Plant Patent PP19835
Silk Road
Hosta plant named ‘Silk Road’
UNDER PATENT
Still under patent. Protection ends February 14, 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
- PP19835
- Filed
- February 14, 2008
- Granted
- March 17, 2009
- Expires
- February 14, 2028
- Assignee
- SHADY OAKS NURSERY LLC
- Inventor
- HANSEN HANS ANDREW
Abstract
A new cultivar of Hosta named ‘Silk Road’, a chimeral mutation of Hosta ‘Silk Kimono’, characterized by its unique variegated foliage with deep green centers and wide creamy yellow to creamy white margins comprising about one half of the leaf area. ‘Silk Road’ has an upright plant habit of large broadly ovate leaves held horizontally on erect petioles and blooms with pale lavender flowers held on erect flower scapes in mid summer.
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 Hosta plant named ‘Silk road’ as herein illustrated and described.
Read the full patent: US Plant Patent PP19835 in full — the complete specification, every figure, and the file history.