This grower is fairly sure of this plant identification.
pretty perennial that has equally pretty leaves as its soft yellow flowers. Happy in dry shade
Epimedium × perralchicum. A semi-evergreen perennial clump of garden origin. Ovate leaves are glossy deep green, bronze when young.
Cut back just before new growth appears in spring.
Ground cover, banks, under shrubs
Italics = data drawn from parent genus or speciesView Full Plant Finder Record