What Is a Mow Strip and How Do You Install One?

A mow strip, sometimes called a mowing curb or edging strip, is a landscaping feature designed to simplify lawn maintenance. This narrow, flat, non-turf border acts as a permanent boundary between the grass and adjacent features like garden beds, fences, or hardscaping. Its primary purpose is utilitarian: creating a surface that allows the wheels of a lawnmower to ride upon it. By providing a solid surface, the strip eliminates the need for time-consuming string trimming or “edging,” streamlining the entire lawn care process.

Defining the Mow Strip and Its Function

A mow strip is a narrow band of paving or hard surface, typically less than 18 inches (450mm) wide, installed flush with or slightly above the surrounding turf line. The design ensures the mower’s wheels travel directly on the strip, allowing the cutting deck to extend fully over the edge of the grass. This permits a clean cut right up to the boundary, removing the small, uncut fringe of grass standard mowers usually leave behind.

This design saves time and effort by preventing the need for secondary trimming tools. It also acts as a physical barrier, helping prevent creeping turfgrass varieties from spreading into adjacent planting beds. Furthermore, when installed next to structures like decks or fences, the strip protects the base materials from accidental damage caused by the mower blade or string trimmer. It provides a distinct, clean transition zone, enhancing the visual definition of the landscape.

Common Materials Used for Construction

The selection of material influences both the final aesthetic and the long-term durability of the feature. Poured concrete is often considered the standard because it offers the highest durability and longevity, allowing for customization through tinting or imprinting textures. Brick pavers or concrete blocks are another popular option, providing a traditional look that is straightforward to install, though they may require maintenance to prevent grass growth between joints.

Natural stone, such as flagstone or thick slate pieces, can be used for a more organic appearance, but the irregular shapes can complicate achieving a level surface. For a flexible and less expensive solution, composite plastic edging or metal strips (like steel or aluminum) are available, which conform easily to curves. However, these materials are often less robust and may require additional support to prevent movement or shifting compared to solid masonry.

Step-by-Step Installation Guide

Successful installation begins with precise planning and preparation. First, mark the intended path using spray paint or a garden hose, ensuring the width is 6 to 12 inches to accommodate a standard mower wheel. Before excavation, call local utility services to mark any underground lines.

Next, dig a trench along the marked line. The depth should allow the finished strip to sit flush with or slightly above the turf. For most paver installations, a depth of 4 to 6 inches is needed for the base layers. Remove all sod, weeds, and root material from the trench to prevent future regrowth and shifting.

Prepare the foundation by adding a 2 to 3-inch layer of crushed gravel or road base. This material must be thoroughly compacted with a hand tamper. This layer promotes drainage and provides a stable base for the strip material. A thin layer of coarse sand or dry concrete mix can be placed over the compacted base to help level and secure the pavers.

Set the selected strip material onto the base layer, placing each unit carefully and tapping it gently with a rubber mallet to ensure it is level. The top surface should align with the turf line, or be raised slightly to account for settling. Finally, fill the joints between the units with sand, polymeric sand, or mortar, and backfill the soil around the edges.

Placement and Design Considerations

Mow strips are most effective when placed along the entire perimeter of the lawn, especially where the turf meets an immovable object or planting bed. They are commonly installed adjacent to sidewalks, driveways, garden borders, and vertical structures like fences or shed walls. The recommended width is typically between 6 and 10 inches, which is sufficient for most residential mower wheelbases.

When planning the layout, consider how the design integrates with the existing landscape. Straight runs are the simplest, but the strip must seamlessly manage any curves or corners in the lawn’s boundary. For graceful curves, use smaller, flexible materials like poured concrete or specialized interlocking pavers to achieve a smoother line. Selecting a material color and texture that complements nearby patio or house elements ensures the strip enhances the overall visual appeal.