Black Mondo Grass In Containers: A Guide For 2023

black mondo grass in containers SPRING & SUMMER CONTAINERS
black mondo grass in containers SPRING & SUMMER CONTAINERS from


Black mondo grass, scientifically known as Ophiopogon planiscapus ‘Nigrescens,’ is an appealing and versatile plant that can add a touch of elegance to any garden or outdoor space. In this article, we will explore the beauty and benefits of growing black mondo grass in containers and provide you with essential tips and guidelines to ensure its successful cultivation.

Why Choose Black Mondo Grass?

Black mondo grass stands out due to its dark, almost black, foliage, which creates a striking contrast against bright flowers or lighter foliage. It is a slow-growing and low-maintenance plant, making it an excellent choice for container gardening. With its compact size and adaptability, this ornamental grass can thrive in various environments, including containers.

Choosing the Right Container

When selecting a container for your black mondo grass, opt for one that allows for proper drainage. This ensures that excess water doesn’t accumulate, preventing root rot and other water-related issues. Additionally, choose a container that provides sufficient space for the plant’s root system to grow and expand gradually.

Soil Requirements

Black mondo grass prefers well-draining soil with a slightly acidic to neutral pH level. A mix of potting soil, peat moss, and perlite can create an ideal growing medium. Ensure that the soil is rich in organic matter to provide the necessary nutrients for the plant’s growth.

Planting and Placement

Before planting your black mondo grass, consider the lighting conditions in the chosen location. While it tolerates partial shade, this grass thrives best in full sun to achieve its darkest foliage. Place the container in an area where it receives at least six hours of direct sunlight per day.

Watering and Maintenance

Proper watering is crucial for the health of your black mondo grass. While it requires regular watering to establish itself, ensure that you don’t overwater, as excessive moisture can lead to root rot. Allow the top inch of soil to dry out before watering again. Additionally, remove any dead or yellowing leaves to maintain its overall appearance.


Black mondo grass generally doesn’t require frequent fertilization. However, a slow-release, balanced fertilizer applied in early spring can provide an extra boost of nutrients. Follow the manufacturer’s instructions to avoid over-fertilization, which can harm the plant.

Controlling Pests and Diseases

Black mondo grass is relatively resistant to pests and diseases. However, keep an eye out for common issues like aphids, mealybugs, or fungal infections. Regularly inspect the plant for any signs of infestation or disease and take appropriate measures, such as using organic insecticides or fungicides, to prevent further damage.

Dividing and Propagation

Over time, black mondo grass may expand and overcrowd its container. To maintain its health and appearance, divide the plant every two to three years. Gently remove the grass from the container, separate the clumps, and replant them in fresh soil. This process not only prevents overcrowding but also allows for propagation, giving you new plants to enjoy or share with fellow gardening enthusiasts.


Black mondo grass is a captivating addition to any container garden, providing a touch of elegance and drama. By following the guidelines outlined in this article, you can successfully grow and maintain this stunning ornamental grass in containers, creating a visually appealing and low-maintenance feature in your outdoor space.