Blog · 9 October 2026

Trimming tall hedges: how it's done and what to use

Trimming a hedge above head height requires stable access at elevation: ladder, telescopic pole, or aerial work platform — each with its own limitations.

The photinia hedge on the garden boundary gained height over the summer and now clears the head of anyone working on it by a wide margin. The gate on the garage side is narrow, the ground along the fence is uneven, and resting a ladder on that grassy edge means leaning it against something that won't hold. Anyone managing green spaces in private yards or multi-family properties will run into this situation sooner or later.

Three ways to work at height on a hedge

A ladder is the most common solution for hedges that overshoot head height by only a little. It's cheap, needs no planning, and moves in seconds. The limitation appears when the ground is uneven or sloped: the ladder won't stabilize, and working with a vibrating tool in hand on an unsteady support increases risk without improving speed. It works well on flat, compact ground with a second person holding the base. On slopes, raised planting bed edges, or wet ground, it stops being a safe choice.

A telescopic pole — a shaft that extends the hedge trimmer — lets the operator stay on the ground and reach the top of the hedge without climbing. It's the right approach when the hedge is long, straight, and the top doesn't overshoot the limit of a raised arm by too much. The problem shows up on the vertical sides of the hedge beyond a certain height, where the pole loses useful angle and cut control becomes imprecise. It's not a tool for complex jobs or very tall hedges.

An aerial work platform moves the operator to height in a stable way. The basket doesn't depend on ground contact the way a ladder does, and whoever works inside it has both hands free to guide the tool. It's the required approach when the hedge is tall, when the ground is uneven, or when the job runs for hours and the fatigue of holding the pole at arm's length from the ground would become the real problem. The limitation is access: a conventional wheeled platform rarely fits into private yards or along fences, where passageways are narrow and the lawn has to be protected.

The material left behind

After trimming, there's always more material than estimated before starting. Branches, leaves, and brush pile up along the entire hedge and need to be hauled out, often through the same tight passageway used to get in. Making those trips by hand with a pitchfork and wheelbarrow is the part of the job that eats up the most time. A compact tracked machine fits wherever a wheelbarrow fits, won't sink into the lawn, and lets you load and move in a few trips what would otherwise take an afternoon. For a closer look at how to organize this step, the article on tracked transport for landscapers covers the details.

In the Cormidi lineup

Cormidi does not manufacture hedge trimmers or hedge-cutting tools: if that's what you're looking for, the article on how to choose a hedge trimmer offers a useful comparison of the options available on the market.

What Cormidi carries in its lineup are the tracked aerial work platforms KB20 and KB23, with basket and articulated boom, mounted on a tracked undercarriage. The tracks distribute weight across the ground and allow work on grass, packed dirt, or gradients where a wheeled platform cannot operate. They fit through a narrow gate and stabilize on uneven ground without preparing a base. The KB11 is instead an attachment that mounts on the CMF multi-purpose machines. They don't replace the hedge trimmer: they bring it to height in a stable way, leaving the operator with both hands free.

What to check before deciding

Before choosing how to proceed, it's worth measuring three things: the actual height of the hedge at its tallest point, the width of the narrowest passageway between the entry point and the hedge, and the ground conditions along the route. These three figures determine which approach is workable and which isn't. To find out which machine fits your jobsite, a local dealer can assess access directly on site.

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