The common height adjustment range of remote-controlled lawn mowers is approximately 20–60 mm (2–6 cm), and most models offer multi-level settings. Some professional/remote-controlled models can reach a range of 10–150 mm or even wider to adapt to different grass species and terrains.

Overview of Common Adjustment Ranges

Setting Cutting Height by Grass Species (Reference)

Cool-Season Grasses

• Summer: 6–7.5 cm; Spring and Autumn: 5–6 cm; Shady or damaged areas: increase by 1–2 cm slightly.

Warm-Season Grasses

• Growing season: 1.3–2.5 cm; Late autumn to early spring: 2.5–3.2 cm.

Fine/Sports Turf

• Greens: 0.3–1.0 cm; Fairways/Playgrounds: 1.3–2.5 cm.

How to Adjust to the Appropriate Height (Practical Steps)

1. Identify the grass species and purpose: Cool-season/warm-season; Ornamental/sports use; Whether it is in a shady or damaged area.

2. Determine the value based on the season: Set a slightly higher height in summer to protect the roots; Cool-season grasses require a relatively higher height, while warm-season grasses need a lower one.

3. Measure and set: Select 3–5 points on the lawn to measure the natural grass height; Follow the "One-Third Rule" — do not cut more than 1/3 of the grass height at a time; Adjust the mower to the corresponding gear or value (either electronically or manually).

4. First use or seasonal transition: If the grass is too tall, gradually reduce the height to the target level in 2–3 times to avoid "scalping" (cutting the grass too short).

5. Review and fine-tune: After mowing, check if the stubble is even; If there is "clumping" or missed cutting, fine-tune by ±5–10 mm.

Key Principles and Reminders

• One-Third Rule: Do not cut more than 1/3 of the grass height at a time to maintain the root system and stress resistance of the grass.

• Cost of Low Cutting: Setting the cutting height too low will weaken the root system and reduce the grass's tolerance to trampling, drought, and heat.

• Adjust to Local Conditions: Appropriately increase the stubble height during periods of shade, drought, disease, or pest infestations; Different areas can have different height settings.

• Tool Matching: Cutting heights as low as the millimeter level (e.g., 0.3–1.0 cm) usually require reel mowers or high-precision models, while the minimum cutting height of most household remote-controlled/robotic mowers is approximately 2 cm.