I was going to put this under "Woodlanders", but since this plant is so ubiquitously misidentified and sold under the completely wrong name, I thought I'd put it under the Plant Identification area.
So, what we have here is a delightful, small, clumping non-rhizomatous non-spreading "Mondo Grass"... not really a grass at all, but a member of the Ruscaceae, formerly classified as Liliaceae. I knew these as small liliaceous groundcovers from Japan and China, very popular in public plantings in more temperate regions of the US, down South and in California and elsewhere in the west coast. Some are hardy here in New England, but they are not so popular or prevalent.
A small treasure has recently become popular, found in dozens of nurseries available on the web, the plant offered as O. chingii, from China. The problem is, if you check the botanical description of O. chingii in the online Flora of China, it is a complete mismatch for the plant being sold... O. chingii is a much larger and taller broad-leaf species. To try and thwart a misnomer so entrenched and well established in commerce is a daunting task, but we can all help to dispel the unfortunate error. I believe the plant in question, is actually Ophiopogon umbraticola.
I show some photos... the first couple from last fall, where I was surprised to find for the first time, some remarkable shiny blue berries on this plant, almost worth growing for that feature alone. The plant is in flower now (mid July), with tiny sprays of whitish-lavender flowers, the whole affair just a few inches tall. Go and seek out Ophiopogon "chingii" from nurseries, but re-lable them to O. umbraticola, and spread the gospel.
Pertinent links to the Flora of China on Ophiopogon showing that the ID of O. chingii is wrong:
I have also featured his plant on another NARGS thread Re: Evergreen plants after a New England winter