How to Grow Mondo Grass Between Pavers

Transforming the space between pavers into a lush, verdant oasis with mondo grass is not only aesthetically pleasing but also helps control weeds and stabilizes the soil. Mondo grass, or Ophiopogon japonicus, is a hardy, low-growing perennial that thrives in partial shade and requires minimal maintenance. Here's a comprehensive guide on how to grow mondo grass between pavers.

Before we dive into the process, let's discuss why mondo grass is an excellent choice for growing between pavers. Its dense, mat-like growth habit prevents weed growth, and its dark green, strap-like leaves add a striking contrast to the light-colored pavers. Moreover, mondo grass is drought-tolerant and grows slowly, making it an ideal long-term solution for filling the gaps between pavers.

Preparing the Area

Before planting, it's crucial to prepare the area between your pavers to ensure the mondo grass has the best possible start.

Start by removing any existing weeds or debris from the spaces between the pavers. This will help prevent competition for water, nutrients, and space, allowing your mondo grass to thrive.

Assessing the Soil

Next, assess the soil between your pavers. Mondo grass prefers well-draining soil with a pH between 6.0 and 7.0. If the soil is compacted or poorly draining, consider mixing in some organic matter, such as compost or well-rotted manure, to improve its structure and drainage.

If the soil is too sandy or lacks nutrients, you can also incorporate some topsoil or a balanced, slow-release fertilizer to enrich the soil and provide the necessary nutrients for your mondo grass.

Measuring and Planning

Before purchasing your mondo grass, measure the total area between your pavers where you plan to plant. This will help you determine how many plants you need and ensure you don't end up with too much or too little mondo grass.

When planning, consider the growth rate of mondo grass. It grows slowly, adding about 2-4 inches per year, so you'll want to space your plants accordingly. A good rule of thumb is to plant mondo grass about 6-8 inches apart, as this will allow them to fill in the space between pavers over time without becoming overcrowded.

Planting Mondo Grass

Now that you've prepared the area and planned your planting scheme, it's time to plant your mondo grass.

Start by watering the area between your pavers thoroughly. This will help settle the soil and create a moist environment for your mondo grass to establish.

Planting the Grass

Carefully remove each mondo grass plant from its container, gently loosening the roots if they're pot-bound. Place the plant in the prepared hole, ensuring the root flare is level with the soil surface. Backfill the hole with the native soil, pressing it down gently to eliminate air pockets.

Water each plant thoroughly after planting, providing about 1 inch of water per week, either from rainfall or manual watering. Reduce watering once the mondo grass is established, as it is drought-tolerant and prefers dry conditions.

Mulching

Applying a 1-2 inch layer of organic mulch, such as pine needles or shredded leaves, around your mondo grass plants can help retain moisture, suppress weeds, and regulate soil temperature. Be sure to keep the mulch a few inches away from the base of the plants to prevent rot and encourage good air circulation.

Mulching is particularly beneficial in areas with hot summers or cold winters, as it helps protect the mondo grass roots from extreme temperatures.

Maintaining Mondo Grass

Mondo grass is a low-maintenance plant, but there are a few things you can do to ensure it stays healthy and vibrant.

Fertilize your mondo grass sparingly, as it is not heavy feeder. A light application of a balanced, slow-release fertilizer in early spring should be sufficient. Avoid over-fertilizing, as this can lead to excessive growth and poor plant health.

Pruning and Dividing

Mondo grass rarely requires pruning, but if you notice any yellowing or dead leaves, you can trim them back to encourage new growth. Use clean, sharp pruning shears to cut the leaves back to about 1 inch above the soil surface.

If your mondo grass becomes overcrowded or you want to propagate new plants, you can divide the clumps in early spring or fall. Carefully dig up the clump, separate the roots into smaller sections, and replant them in prepared soil. Water the newly planted divisions thoroughly to help them establish.

Controlling Pests and Diseases

Mondo grass is generally resistant to pests and diseases, but it can still be affected by certain issues. Keep an eye out for common problems such as root rot, fungal leaf spot, and aphids.

To prevent these issues, ensure your mondo grass has good air circulation and avoid overwatering. If you notice any signs of pests or diseases, treat the affected plants promptly with appropriate fungicides, insecticides, or organic remedies.

As your mondo grass grows and fills in the spaces between your pavers, you'll be rewarded with a beautiful, low-maintenance landscape that adds both beauty and functionality to your outdoor space. With proper care and attention, your mondo grass will continue to thrive for years to come, providing a lush, verdant groundcover that complements your pavers perfectly.