Black Mondo Grass (Ophiopogon planiscapus 'Nigrescens')

Black Mondo Grass

Ophiopogon planiscapus 'Nigrescens'

Deep black foliage adds dramatic contrast to garden beds. Evergreen perennial groundcover; common name: Black Mondo Grass.

Partial sun
1–2/week
Beginner
🌱

Plant Needs

☀️
Sunlight Tolerates partial shade to full sun; prefers dappled shade to prevent leaf scorch in hot summer climates
💧
Watering Water deeply when the top 2 cm of soil is dry; avoid overwatering to prevent root rot
🌡️
Temperature Hardy to -10°C; withstands mild summer heat but benefits from afternoon shade in warm regions
🔍

Characteristics

  • Leaf: Narrow linear deep purple-black foliage forming tight, low clumps
  • Flower: Pale lilac to white bell-shaped blooms on short, upright stalks
  • Fruit: Small glossy dark blue berries following flowering
🛠️

Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Apply balanced slow-release fertilizer once at emergence. Avoid high-nitrogen fertilizers which can fade the distinctive black foliage color

Eggshell powder top-dress:Crush dried eggshells into fine powder; sprinkle lightly around clump bases to boost soil calcium levels without altering foliage color
Pruning
  • Trim browned or damaged foliage in early spring to encourage fresh new growth
  • Divide overcrowded clumps every 2–3 years in early spring to maintain vigor
  • Remove spent flower stalks post-bloom to keep planting tidy
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxicity to humans

📖

Garden Uses & Culture

Culture: N/A

Usage: Groundcover, garden edging, rock garden accent, container foliage plant