Stachys officinalis
'Hummelo'
BETONY
Stachys officinalis ‘Hummelo’
Glossy, deep green leaves form dense mounds 12″ tall. Spikes of violet flowers rise to 24″ tall. June – August. Cut back to encourage fall rebloom. Full sun to light shade, well-drained soil. Deer resistant. A Piet Oudolf introduction! Useful addition to mixed plantings, as a groundcover, in rock gardens & containers. Zone 4.