Black Mondo Grass

black mondo grass

What is Black Mondo Grass?

Photo of Black mondo grass
Black Mondo (Ophiopogon planiscapus ‘Nigrescens’)

Black Mondo Grass also known as Ophiopogon planiscapus ‘Nigrescens’, and it’s a cultivar of a species native to Asia. This grass is considered non-invasive and can be easily divided to create new plants. It’s a type of ornamental grass that is prized for its dark, almost black leaves. It is a low-growing plant, reaching only 6-8 inches in height, with small, rounded leaves that form a dense, tufted clump. It’s often used as ground cover, in borders, rock gardens, and as an accent plant in containers.

Dimensions

The dimensions of Black Mondo Grass can vary depending on the growing conditions and the specific cultivar, but in general it is a low-growing plant that reaches 6-8 inches in height and spreads to about 10-12 inches in width. The leaves of Black Mondo Grass are small and rounded, typically about 1/2 inch to 1 inch long. The plant forms a dense, tufted clump of foliage, so the overall dimensions of a mature planting can vary depending on how it is spaced and how many plants are used in a given area.

Zones

This is a hardy grass in USDA plant hardiness zones 6-10. This means it can tolerate winter temperatures as low as -10°F to 0°F in these zones. In these zones, Black Mondo Grass is considered a perennials and can survive from year to year. If you live outside of these zones, it may not be suitable for your area and could be damaged by winter cold or hot summer temperatures. It’s best to check your local growing conditions and to consult with a local nursery or gardening expert to determine if Black Mondo Grass will grow well in your area.

How to Tend

Inside

Here are the general care instructions for growing Black Mondo Grass indoors:

  1. Light: Place Black Mondo Grass in a bright, indirect light. It can tolerate some direct sunlight, but too much can cause the leaves to yellow.
  2. Soil: Use a well-drained potting mix that is rich in organic matter. This will help the soil retain moisture but also ensure that it doesn’t get waterlogged, which can lead to root rot.
  3. Watering: Keep the soil evenly moist, but not waterlogged. Do not let the soil dry out completely. It’s best to water Black Mondo Grass when the top inch of soil is dry to the touch.
  4. Humidity: Prefers a slightly humid environment, so it’s a good idea to mist the leaves regularly, especially during the winter months when indoor air can be dry.
  5. Fertilizing: Feed Black Mondo Grass once a month with a balanced, water-soluble fertilizer during the growing season (spring to autumn). Reduce feeding in the winter.
  6. Pruning: Cut back any yellow or dead leaves to maintain a neat appearance.
  7. Repotting: Repot every 2-3 years to refresh the soil and give it more room to grow.

Note: The specific care requirements may vary depending on the growing conditions and climate in your area, so it’s important to monitor your plant and adjust the care accordingly.

Outside

Here are the general care instructions for growing Black Mondo Grass outdoors:

  1. Light: Prefers partial to full shade, but it can tolerate some direct sunlight.
  2. Soil: Plant Black Mondo Grass in a moist, well-drained soil that is rich in organic matter. It is best to amend the soil with compost or other organic matter before planting.
  3. Watering: Keep the soil evenly moist, but not waterlogged. Do not let the soil dry out completely. During periods of drought, you may need to water Black Mondo Grass more frequently.
  4. Fertilizing: Feed Black Mondo Grass once a year with a slow-release, balanced fertilizer in the spring.
  5. Pruning: Cut back any yellow or dead leaves to maintain a neat appearance. You can also divide the plant every 2-3 years to promote healthy growth.
  6. Winter protection: Hardy in USDA zones 6-10 and can tolerate winter temperatures as low as -10°F to 0°F in these zones. However, in colder climates, you may want to provide some winter protection, such as a thick layer of mulch or a protective cover, to prevent the roots from being damaged by frost.

Note: The specific care requirements may vary depending on the growing conditions and climate in your area, so it’s important to monitor your plant and adjust the care accordingly.

Where to Purchase?

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