What Happens to My Robot Mower in Winter?

If you just signed up for Trimly — or you're thinking about it — one question comes up every fall: what happens to the mower when the grass stops growing?

Bermuda grass in Upstate SC goes dormant every year, usually between late October and early November. That means your lawn stops growing. And a lot of people wonder if their robot mower just sits outside in the cold for four months, or if they need to do something about it.

The answer is simple: you don't have to do anything. Trimly handles it.

Here's exactly what happens.

When Does Bermuda Grass Stop Growing?

Bermuda grass slows down once nighttime temperatures consistently fall below 50°F. In the Greenville-Spartanburg area, that usually happens in mid-to-late October. By mid-November, most Bermuda lawns are fully dormant and starting to turn that familiar tan-brown color.

Bermuda stays dormant through winter and starts waking back up in March or April, once soil temperatures climb above 65°F. During those four or five months, your lawn needs almost no attention.

What Happens in September and October (the Slow-Down Period)?

Before Bermuda goes fully dormant, growth slows gradually. Your mower runs fewer cycles but still keeps the turf at a consistent height. Shorter, more frequent cuts during the slow-down period mean your lawn enters winter looking tighter — which helps it bounce back faster in spring.

You'll notice the mower spending more time on its charging base. That's normal. The Navimow mower reads the environment and adjusts automatically.

What Happens When the Grass Stops Growing?

When Bermuda is fully dormant, Trimly suspends active mowing. The mower stays exactly where it is — on its charging base at your property, powered and connected.

You don't bring it inside. You don't store it in the garage. You don't winterize it.

The Segway Navimow operates reliably in temperatures as low as 14°F (-10°C). Upstate SC winters average lows in the high 20s to low 40s in December and January — well within the mower's operating range. A typical Greenville winter isn't going to hurt your mower.

Trimly monitors every unit remotely throughout the off-season. If there's a hardware issue, a connectivity problem, or anything else that needs attention, we see it and handle it. You get a call if something needs your input. Otherwise, the mower takes care of itself.

Does My Subscription Continue in Winter?

Yes. Your Trimly subscription runs year-round.

Here's the context that makes that make sense. A traditional lawn crew mows your yard about 32 times a year at weekly intervals. Trimly mows up to 215 times during the active growing season. Those daily micro-cuts are what produce thicker, denser turf — not just a lawn that looks good on mow day.

Winter monitoring, spring startup prep, and remote system checks are all part of the service. The mower is ready to go the moment growth returns in the spring.

What About Spring Restart?

When Bermuda starts growing again in April, Trimly resumes mowing automatically. No call needed, no visit to schedule, no settings to change. The mower picks up its schedule as your lawn comes back.

If anything needs adjusting for the new season — zone map updates, schedule tweaks, a spring maintenance check — Trimly handles it at first spring service.

What You Actually Have to Do

Nothing.

Leave your mower on its charging base where Trimly installed it. Don't cover it, don't move it, don't unplug it. We'll take care of the rest from here until spring.

If you're a homeowner in Greenville, Spartanburg, Anderson, Laurens, Cherokee, or York County, that's what a Trimly subscription looks like all year: set it up once, then forget it.

Still thinking about signing up before winter? Now is a good time. Your mower will be installed, mapped, and running through the rest of the growing season — then monitored through winter and ready for a strong spring start.

A standard yard (up to 10,890 sq ft) is $199/month. Get an instant quote at trimly-automow.com or call (864) 256-0999.