Northwest Blooms · Groundcovers
Ophiopogon planiscapus ‘Nigrescens’
Black Mondo Grass
- Family
- Asparagaceae
- Height
- 6 to 12 inches
- Width
- 6 to 12 inches, slowly spreading clumps
- Flower color
- Pale lavender to white
- Foliage color
- Black or dark purple
- Bloom time
- Summer
- Light
- Full sun to partial shade
- Water
- Average
- Maintenance
- Low
- Growing zone
- USDA zones 6 to 9
- Wildlife
- Bees (pollinators)
About this plant
Ophiopogon planiscapus 'Nigrescens', commonly known as black mondo grass, is a bold ornamental plant prized for its dramatic, nearly black, strap-like foliage. Blooming in mid to late summer, it produces small, bell-shaped, pale lilac to white flowers that appear in clusters among the dark leaves. Following the blooms, glossy black berries develop, adding further visual interest.
Native to Japan, 'Nigrescens' is valued for its unusual foliage color and texture. It's often used in borders, rock gardens, or as ground cover, where its dark leaves provide striking contrast to lighter plants, making it a unique addition to a variety of garden designs. The combination of moody foliage and delicate flowers gives it a strong ornamental appeal year-round.
Works well in
Formal Gardens · Rock Gardens · Containers · Borders
Companion plants
Ajugas · Heathers · Heucheras · Japanese forest grass · Acorus · Autumn ferns
Design tip
Repeat this dark foliage along pathways or at the front of planting beds where its dramatic color creates bold definition. Pair it with golden foliage, silver leaves, and lighter flowering companions to produce striking contrast and a refined, layered composition.
Where to see it
This plant can be seen at the Center for Urban Horticulture.
