US Patent Issued to Spring Meadow Nursery on July 21 for "Clematis plant named 'Mystic River'" (Polish Inventor)

ALEXANDRIA, Va., July 21 -- United States Patent no. PP37,531, issued on July 21, was assigned to Spring Meadow Nursery Inc. (Grand Haven, Mich.).

"Clematis plant named 'Mystic River'" was invented by Szczepan Marczynski (Pruszkow, Poland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A new and distinct cultivar of Clematis plant named 'Mystic River' is disclosed, characterized by light blue tepals with a darker, violet-blue band. Tepals exhibit a unique longitudinal twisting/corkscrewing habit. Plants are vigorous, floriferous, and excellent container and landscape performers. The new cultivar is a Clematis, typically produced as an outdoor ornamental plant."

The patent was filed on Oct. 28, 2025, under Ap...