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The Patent Garden

US Plant Patent PP18673

Sweet Caroline Green Yellow

Ornamental sweetpotato plant named ‘Sweet Caroline Green Yellow’

PUBLIC DOMAIN

Patent expired March 31, 2026. This plant is in the public domain — anyone may propagate and sell it.

No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

Figure 1 of US plant patent PP18673, the photograph of Sweet Caroline Green Yellow printed in the patent.
Figure 1 from US Plant Patent PP18673, reproduced as printed. Photographs in a plant patent are taken by the applicant. Reproduction of the patent document is permitted; the image is shown whole and uncropped for that reason.

The record

Patent number
PP18673
Filed
March 31, 2006
Granted
April 1, 2008
Expires
March 31, 2026
Assignee
UNIV NORTH CAROLINA STATE
Inventor
YENCHO GEORGE CRAIG; PECOTA KENNETH

Abstract

Ipomoea batatas ‘Sweet Caroline Green Yellow’ is a moderately compact to slightly trailing cultivar. This cultivar is distinguishable from other cultivars by its green and yellow to light yellow variegation. The plant has moderate vigor, is moderately to well branched and is well suited for container production. The production of flowers by ‘Sweet Caroline Green Yellow’ is sparse to moderate under short day conditions.

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 Ipomoea batatas plant named ‘Sweet Caroline Green Yellow’, substantially as illustrated and described herein.

Read the full patent: US Plant Patent PP18673 in full — the complete specification, every figure, and the file history.