Mondo grass (genus Ophiopogon) is an evergreen, clumping groundcover used for shaded borders, edging, and underplanting. It prefers partial to full shade, well-drained soil, and moderate moisture. Cultivars include green-leaved types and the dark-leaved 'Nigrescens' (black mondo). Manage by planting crowns at soil level, watering until established, and dividing every few years. Avoid poor drainage to reduce fungal leaf spots and root rot.

What is mondo grass?

Mondo grass (genus Ophiopogon) is an evergreen, clumping groundcover prized for its narrow, arching leaves and low habit. Often called monkey grass, it is commonly used to edge beds, fill narrow strips between paving, and carpet shaded garden areas.

Appearance and cultivars

Leaves are grass-like but typically finer and shorter than lawn turf. In summer, some varieties produce short flower spikes followed by small, dark berries that add seasonal contrast to green foliage.

A well-known dark-leaved form, Ophiopogon planiscapus 'Nigrescens', is marketed as black mondo. Its near-black foliage provides a strong focal contrast against lighter-leaved plants and flowering perennials.

Light, soil and hardiness

Mondo grass performs best in partial to full shade and tolerates dappled sunlight. It prefers well-drained, fertile soil and regular moisture during establishment. It is widely grown in temperate gardens and landscape plantings; check local hardiness recommendations for your area (see Verification To-Dos).

Planting and maintenance

Plant crowns at soil level and space to allow clumps to fill in naturally. New plantings need consistent watering until established. After that, maintenance is minimal: occasional light division every few years will rejuvenate clumps and control spread.

Avoid heavy fertilization and prolonged wet feet. Good air circulation and well-drained soil reduce the chance of fungal problems.

Pests and diseases

Mondo can suffer from fungal leaf spots and root rot in poorly drained or overcrowded conditions. Remove and discard affected foliage and improve drainage if problems appear. Regular monitoring keeps small outbreaks from spreading.

Uses in the landscape

Use mondo grass as a low, textural foil to flowering perennials, under shrubs, or as a soft edge along walkways. The low profile keeps sight lines open while providing reliable cover where turf struggles under shade.

Summary

Mondo grass is an easy-care, evergreen groundcover for shaded or partly shaded areas. With a choice of green and dark-leaved cultivars and modest maintenance needs, it remains a practical option for modern landscapes.

  1. Confirm USDA hardiness zones for common Ophiopogon species (e.g., O. japonicus and O. planiscapus). [[CHECK]]
  2. Verify the most common fungal diseases and pest issues affecting mondo grass in your region (leaf spot, root rot, etc.). [[CHECK]]

FAQs about Mondo Grass

Is mondo grass the same as monkey grass?
Yes. "Monkey grass" is a common name often applied to mondo grass (Ophiopogon). The name can also be used for some related plants, so check botanical names when buying.
Where does mondo grass grow best?
Mondo grass grows best in partial to full shade with well-drained, fertile soil. It tolerates light sun but can suffer in prolonged hot, direct sun.
How do I maintain mondo grass?
Water regularly until plants establish, divide clumps every few years to refresh them, remove dead leaves, and avoid overwatering. Improve drainage if fungal issues appear.
What is black mondo?
Black mondo refers to a dark-leaved cultivar (commonly Ophiopogon planiscapus 'Nigrescens'). Its almost-black foliage is used for contrast in borders and containers.