Ophiopogon chingii, synonym O. wallichiana, is a gorgeous small, ground-cover, evergreen perennial, about 10cm in height. It spreads slowly from short rhizomes, and bears tufts of narrow deep green leaves, from which tiny bluish flowers.These give rise to metallic blue berries. It is native to Japan.
Ophiopogon chingii 9cm €5.95
Photographer Richie Steffen, courtesy The Elisabeth C Miller Botanical Garden http://www.millergarden.org, CC BY-SA 3.0, via Wikimedia Commons