Hylotelephium cauticola

Hylotelephium cauticola, the cliff stonecrop, syn. "Sedum cauticola", is a species of flowering plant in the family Crassulaceae, native to Hokkaido, Japan. Growing to tall by wide, it is a carpet-forming succulent perennial with trailing stems of pink-tinged grey-green round leaves, and purplish pink star-shaped flowers in autumn.
The specific epithet "cauticola" means "growing on cliffs", referring to the plant's favoured habitat.
It is grown in rock gardens and alpine gardens in alkaline to neutral soil. It has gained the Royal Horticultural Society's Award of Garden Merit.