Peltoboykinia (Saxifragaceae)

watanabei

Perennial native to Japan mountain forests, that can grow into weed smothering patches, of large boldly lobed shiny leaves. Flowering on stems to 1m tall with clusters of pale yellow starry flowers from early summer sometimes into the autumn. Easily grown in a moist leafy soil in part-full shade, where it can self-seed when happy.