Black Mondo Grass Plant Care
Ophiopogon planiscapus Nakai
Ophiopogon planiscapus is a species of flowering plant in the family Asparagaceae. It is a small evergreen perennial growing to 20 cm (8 in) tall by 30 cm (12 in)wide.
Every 7–14 days
Shade to part shade
55–75°F
40–70%
What Is the Black Mondo Grass?
Black Mondo Grass (Ophiopogon planiscapus) belongs to the Asparagaceae family within the Ophiopogon genus. Black Mondo Grass is native to Japan. Black Mondo Grass is also known as Mondo Grass, Snake's Beard.
Black Mondo Grass displays a low rosette, spreading groundcover growth habit, reaching up to 0.5 inches tall with a spread of approximately 1 inches. Black Mondo Grass produces small, insignificant white or pale lilac flowers.
Leaf size: approximately 6 inches.
How Often Should You Water a Black Mondo Grass?
Ophiopogon planiscapus requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Black Mondo Grass Need?
Black Mondo Grass thrives in shade to part shade light conditions. The optimal light range is 50–250 lux. Avoid placing Black Mondo Grass in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Shade to part shade
50–250 lux
What Temperature and Humidity Does the Black Mondo Grass Prefer?
Ophiopogon planiscapus grows best at temperatures between 55°F and 75°F. Black Mondo Grass prefers humidity levels of 40–70%.
Temperature
55–75°F
Humidity
40–70%
What Soil Mix Works Best for a Black Mondo Grass?
Well-draining, fertile soil with added organic matter like compost or peat moss. Good drainage is essential for Black Mondo Grass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Black Mondo Grass?
Repot every 2-3 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Black Mondo Grass?
Black Mondo Grass can be propagated through division of clumps, seeds.
Fertilizing
Every 6 months
During the growing season
Is the Black Mondo Grass Toxic to Pets and Children?
Non-Toxic
Non-toxic to humans and pets
What Pests and Diseases Affect the Black Mondo Grass?
Black Mondo Grass is susceptible to spider mites, aphids. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
What USDA Hardiness Zone Does the Black Mondo Grass Need?
Black Mondo Grass grows outdoors in USDA Zone 12b. Native to Japan, Black Mondo Grass is adapted to warm climates. In cooler regions, grow Black Mondo Grass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12b
Keep exploring plants
Black Mondo Grass is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Ophiopogon genus — compare its care with other Ophiopogon species on PlantoScan.
Black Mondo Grass tolerates low-light rooms and shaded spots — browse the full list of low-light plants.
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