Black Mondo Grass (Ophiopogon planiscapus)

Black Mondo Grass

Ophiopogon planiscapus

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

Partial sun
1–2/week
Beginner
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Plant Needs

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Sunlight Tolerates partial shade to full sun; best in filtered light to prevent leaf scorch in hot summer climates
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Watering Water deeply when the top 2 cm of soil is dry; avoid waterlogging to prevent root rot
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Temperature Hardy to -10°C; withstands mild summer heat but benefits from afternoon shade in extreme high temperatures
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Characteristics

  • Leaf: Narrow, linear, deep purple-black foliage forming dense, low-growing clumps
  • Flower: Pale lilac to white bell-shaped flowers on short, upright stems
  • Fruit: Small, glossy dark blue berries that persist into winter
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Care Guide

Watering

Keep soil evenly moist during active growth periods

Fertilization

Apply balanced slow-release organic fertilizer once. Use compost tea for gentle, natural nutrient supplementation

Crushed eggshell topdressing:Crush dried eggshells into fine powder; sprinkle lightly on soil surface and water in to avoid pest attraction
Pruning
  • Trim brown or damaged foliage in early spring to refresh clumps
  • Divide overcrowded clumps every 2–3 years in early spring to maintain vigor
  • Remove spent flower stems to preserve tidy clump appearance
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; no reported toxicity

Humans: Non-toxic to humans; no known adverse effects from ingestion or contact

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Garden Uses & Culture

Culture: N/A

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