How often should I re-edge my garden beds?

Minimum three times per year: early spring before the first mowing, midsummer when grass growth is strongest, and early fall before growth slows. More frequently in areas with aggressive grass or where the edge receives heavy foot traffic.

What tool is best for cutting a mowing edge?

A half-moon edger for short curves and corners. A wheeled rotary edger for long straight runs. A flat spade can establish a new edge but is less precise than a dedicated edger. String trimmers held vertically cut quickly but less cleanly.

Should garden bed edges be straight or curved?

Determined by the design. Straight edges read as formal and geometric. Gradual curves read as naturalistic. Tight S-curves and complex curves read as fussy and are difficult to maintain cleanly. The simplest curve that fits the design intent is the correct choice.

The Mowing Edge — Old Canaan Building Materials

The mowing edge is the cut line between the lawn and the planting bed, the gravel path, the meadow, or the woods. It is not a material. It is a maintenance decision made visible. A clean mowing edge tells you everything about how a landscape is being kept. A ragged one tells you the same thing. It costs nothing but attention, and it produces more visual order than any amount of expensive material.

The Character

A correct mowing edge is a clean, vertical cut through the turf at the bed margin — the grass ends, the bed begins, with a 1-to-2-inch vertical wall of turf between. From any distance it reads as a line. Up close it reads as a cut — the cross-section of the turf and soil visible at the edge. It is re-cut two to three times per year to maintain its character as growth softens it.

What It Is

The mowing edge is created with a manual or wheeled half-moon edger or a rotary string edger, cutting through the turf at the established bed line. It is not a product. It is a task. Steel edging, stone, or brick at the bed margin holds the line between cuts and makes the re-edging easier, but the edge itself is the cut in the turf, not the material that holds it.

How It Behaves

A mowing edge cut in spring holds reasonably well through summer with monthly maintenance. Grass invades planting beds continuously — this is the nature of grass — and the edge requires periodic re-cutting to maintain the clean line. In areas with aggressive grass species, a physical edging material (steel, stone) significantly reduces the maintenance frequency.

Why It's Right

The mowing edge is the fundamental organizing line of the maintained New England landscape. Before any plant, any path, any structure, the edge between the kept and the natural is what reads. A landscape with sharp edges and simple plants reads as more designed than one with elaborate plants and soft edges.

How To Get It

A half-moon edger for manual maintenance of short bed edges. A wheeled rotary edger for longer runs. A string trimmer held vertically for quick maintenance cuts. Re-edge in early spring before the first mowing, again in midsummer, and again in early fall.

The Old Canaan Standard

Clean vertical cut through turf at bed margin, re-established minimum three times per year, as the primary organizational line of the maintained New England landscape. Steel edging at the margin of gravel paths and formal beds. No plastic edging. No ragged turf edge. This is the line that makes the rest of the landscape read.

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The Mowing Edge

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