Primula Matthiola Congesta

This compact alpine-bells form is treated as Primula matthioli subsp. sachalinensis, formerly known in gardens as Cortusa matthioli var. congesta. Rounded, deeply lobed leaves form a low rosette, while short stems carry congested clusters of nodding pink to purple bells with projecting stamens. Native relatives occur in the Russian Far East and northern Japan, favouring cool woodland, rocky stream margins and humus-filled crevices. Its neat scale and graceful flowers suit a shaded trough or woodland edge with constant moisture and excellent drainage.